NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:15,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:15,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:15,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:15,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:15,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:15,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:15,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:15,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:15,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:15,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:15,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:15,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:15,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:15,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:15,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:15,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:15,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:15,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:15,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:15,834 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:15,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:15,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:15,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:15,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:15,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:15,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:15,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:15,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:15,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:15,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:15,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:15,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:15,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:15,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:15,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:15,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:15,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:15,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:15,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:15,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:15,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:15,843 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:15,854 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:15,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:15,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:15,855 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:15,855 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:15,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:15,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:15,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:15,857 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:15,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:15,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:15,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:15,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:15,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:15,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:15,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:15,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:15,992 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:15,992 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:15,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,036 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/8c73168b5fae410f865b5299aaf63e8a/FLAGbe801dd47 [2023-02-13 03:40:16,419 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:16,419 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,424 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/8c73168b5fae410f865b5299aaf63e8a/FLAGbe801dd47 [2023-02-13 03:40:16,438 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/8c73168b5fae410f865b5299aaf63e8a [2023-02-13 03:40:16,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:16,441 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:16,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:16,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:16,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d205cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:16,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:16,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,533 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:16,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,547 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:16,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16 WrapperNode [2023-02-13 03:40:16,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:16,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:16,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,566 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-13 03:40:16,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:16,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:16,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:16,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:16,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:16,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:16,598 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:16,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:16,620 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:16,706 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:16,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:16,775 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:16,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:16,782 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:16,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16 BoogieIcfgContainer [2023-02-13 03:40:16,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:16,785 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:16,785 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:16,787 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:16,788 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,798 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2023-02-13 03:40:16,799 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:16,799 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:16,799 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:16,799 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:16,800 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:16,800 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:16,800 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:16,807 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:16,813 INFO L200 BlockEncoder]: SBE split 1 edges [2023-02-13 03:40:16,814 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:16,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:16,819 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:40:16,820 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:40:16,820 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:16,820 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:16,821 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:16,821 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:16,821 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2023-02-13 03:40:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16 BasicIcfg [2023-02-13 03:40:16,821 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:16,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:16,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:16,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:16,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:16,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef38e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:16,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef38e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (3/4) ... [2023-02-13 03:40:16,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef38e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16" (4/4) ... [2023-02-13 03:40:16,825 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:16,834 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:16,835 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:16,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef38e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:16,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:16,836 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:16,837 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:16,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:16,838 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a10eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:16,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a10eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (3/4) ... [2023-02-13 03:40:16,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a10eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16" (4/4) ... [2023-02-13 03:40:16,840 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:16,870 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:16,870 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:16,870 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:16,870 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:16,870 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:16,870 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:16,870 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:16,871 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:16,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:16,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:16,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:16,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:16,885 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:16,885 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:16,885 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:16,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:16,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:16,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:16,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:16,886 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:16,886 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:16,888 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 5#L11-2true [2023-02-13 03:40:16,889 INFO L735 eck$LassoCheckResult]: Loop: 5#L11-2true [48] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 6#L12true [41] L12-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_8| |v_ULTIMATE.start_main_~i~0#1_6|) 1) (< (+ |v_ULTIMATE.start_main_~w~0#1_4| |v_ULTIMATE.start_main_~i~0#1_8|) 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 4#L16-2true [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 5#L11-2true [2023-02-13 03:40:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash 80, now seen corresponding path program 1 times [2023-02-13 03:40:16,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:16,897 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343083920] [2023-02-13 03:40:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:16,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,939 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:16,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:16,951 INFO L85 PathProgramCache]: Analyzing trace with hash 77224, now seen corresponding path program 1 times [2023-02-13 03:40:16,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:16,951 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132001661] [2023-02-13 03:40:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:16,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:16,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2430713, now seen corresponding path program 1 times [2023-02-13 03:40:16,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:16,962 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477619015] [2023-02-13 03:40:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:16,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,008 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,009 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,009 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,009 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:17,009 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,009 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,009 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:17,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,009 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,017 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,026 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,060 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,060 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:17,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,062 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,074 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:17,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,089 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,089 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,110 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,111 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,114 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:17,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,126 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,141 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:17,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,142 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,152 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:17,188 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,189 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,197 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:17,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:17,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,225 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:17,226 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,227 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,228 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:17,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:17,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,232 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,246 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,276 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,279 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:17,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,280 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,285 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:17,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,328 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:17,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,329 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,337 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:17,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:17,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:17,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:17,346 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:17,350 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:17,350 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:17,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,352 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,353 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:17,354 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:17,354 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:17,354 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:17,354 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:40:17,369 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:17,372 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,395 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:17,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,404 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:17,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,478 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:17,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:17,484 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:17,486 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:17,487 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,561 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 73 transitions. Complement of second has 14 states. [2023-02-13 03:40:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 5 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 43 transitions. [2023-02-13 03:40:17,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 43 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:40:17,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:17,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 43 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:17,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:17,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 43 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:17,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:17,572 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 73 transitions. [2023-02-13 03:40:17,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-02-13 03:40:17,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 26 states and 42 transitions. [2023-02-13 03:40:17,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-02-13 03:40:17,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-02-13 03:40:17,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 42 transitions. [2023-02-13 03:40:17,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:17,577 INFO L220 hiAutomatonCegarLoop]: Abstraction has 26 states and 42 transitions. [2023-02-13 03:40:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 42 transitions. [2023-02-13 03:40:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2023-02-13 03:40:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2023-02-13 03:40:17,592 INFO L242 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-13 03:40:17,592 INFO L426 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-13 03:40:17,592 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:17,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2023-02-13 03:40:17,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-02-13 03:40:17,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:17,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:17,593 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:17,593 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:17,593 INFO L733 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 118#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 123#L12 [2023-02-13 03:40:17,593 INFO L735 eck$LassoCheckResult]: Loop: 123#L12 [41] L12-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_8| |v_ULTIMATE.start_main_~i~0#1_6|) 1) (< (+ |v_ULTIMATE.start_main_~w~0#1_4| |v_ULTIMATE.start_main_~i~0#1_8|) 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 114#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 127#L11-2 [48] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 123#L12 [2023-02-13 03:40:17,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2527, now seen corresponding path program 1 times [2023-02-13 03:40:17,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,594 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397029612] [2023-02-13 03:40:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,596 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash 70294, now seen corresponding path program 2 times [2023-02-13 03:40:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,598 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832972193] [2023-02-13 03:40:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,601 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,604 INFO L85 PathProgramCache]: Analyzing trace with hash 75322360, now seen corresponding path program 1 times [2023-02-13 03:40:17,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,604 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514434075] [2023-02-13 03:40:17,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:17,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:17,625 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514434075] [2023-02-13 03:40:17,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514434075] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:17,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:17,626 ERROR L191 FreeRefinementEngine]: {136#true} [138#(<= 5 |ULTIMATE.start_main_~w~0#1|), 139#(<= 6 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~w~0#1|)), 137#false, 137#false] {137#false} [2023-02-13 03:40:17,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:40:17,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761947580] [2023-02-13 03:40:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:17,642 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,642 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:17,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:17,642 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,642 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,643 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,644 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,645 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,671 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,671 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:17,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,672 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,674 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:17,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,682 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,682 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,700 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:17,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,700 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,701 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,703 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:17,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,725 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:17,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,726 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,727 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,728 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:17,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,762 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:17,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,762 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,766 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:17,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:17,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,870 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:17,873 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:40:17,873 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,874 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,874 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,874 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,874 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:17,874 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,874 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,874 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,874 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:17,874 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,882 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,935 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:17,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,935 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,937 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,939 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:17,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,965 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:40:17,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,966 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,968 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:17,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,011 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:18,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,012 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,012 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,014 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:18,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,029 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:18,034 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:18,034 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:18,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,034 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,035 INFO L229 MonitoredProcess]: Starting monitored process 16 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,037 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:18,037 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:18,037 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:18,037 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:18,037 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:40:18,074 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:18,076 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:18,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,110 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,129 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:18,130 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-13 03:40:18,130 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,209 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 130 states and 184 transitions. Complement of second has 39 states. [2023-02-13 03:40:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2023-02-13 03:40:18,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:40:18,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:40:18,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:40:18,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 184 transitions. [2023-02-13 03:40:18,217 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 73 [2023-02-13 03:40:18,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 88 states and 131 transitions. [2023-02-13 03:40:18,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2023-02-13 03:40:18,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2023-02-13 03:40:18,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 131 transitions. [2023-02-13 03:40:18,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:18,220 INFO L220 hiAutomatonCegarLoop]: Abstraction has 88 states and 131 transitions. [2023-02-13 03:40:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 131 transitions. [2023-02-13 03:40:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 48. [2023-02-13 03:40:18,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.625) internal successors, (78), 47 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 78 transitions. [2023-02-13 03:40:18,224 INFO L242 hiAutomatonCegarLoop]: Abstraction has 48 states and 78 transitions. [2023-02-13 03:40:18,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 03:40:18,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-13 03:40:18,228 INFO L87 Difference]: Start difference. First operand 48 states and 78 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:18,264 INFO L93 Difference]: Finished difference Result 23 states and 34 transitions. [2023-02-13 03:40:18,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2023-02-13 03:40:18,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-02-13 03:40:18,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 34 transitions. [2023-02-13 03:40:18,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-02-13 03:40:18,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-02-13 03:40:18,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2023-02-13 03:40:18,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:18,266 INFO L220 hiAutomatonCegarLoop]: Abstraction has 23 states and 34 transitions. [2023-02-13 03:40:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2023-02-13 03:40:18,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-02-13 03:40:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2023-02-13 03:40:18,272 INFO L242 hiAutomatonCegarLoop]: Abstraction has 21 states and 31 transitions. [2023-02-13 03:40:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 03:40:18,275 INFO L426 stractBuchiCegarLoop]: Abstraction has 21 states and 31 transitions. [2023-02-13 03:40:18,275 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:18,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 31 transitions. [2023-02-13 03:40:18,277 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-02-13 03:40:18,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,278 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,278 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:40:18,279 INFO L733 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 414#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 419#L12 [2023-02-13 03:40:18,279 INFO L735 eck$LassoCheckResult]: Loop: 419#L12 [45] L12-->L16: Formula: (>= (+ |v_ULTIMATE.start_main_~w~0#1_5| |v_ULTIMATE.start_main_~i~0#1_9|) 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} AuxVars[] AssignedVars[] 421#L16 [46] L16-->L16-2: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_13| 0) (>= |v_ULTIMATE.start_main_~w~0#1_7| |v_ULTIMATE.start_main_~i~0#1_14|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_14|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_13|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 409#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 425#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 419#L12 [2023-02-13 03:40:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2527, now seen corresponding path program 2 times [2023-02-13 03:40:18,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,281 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268650664] [2023-02-13 03:40:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,288 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2309423, now seen corresponding path program 1 times [2023-02-13 03:40:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,293 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624126608] [2023-02-13 03:40:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:18,307 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624126608] [2023-02-13 03:40:18,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624126608] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:18,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:18,308 ERROR L191 FreeRefinementEngine]: {432#true} [432#true, 434#(<= |ULTIMATE.start_main_~i~0#1| 0), 434#(<= |ULTIMATE.start_main_~i~0#1| 0)] {433#false} [2023-02-13 03:40:18,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:18,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966509082] [2023-02-13 03:40:18,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:18,308 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:18,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:18,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:18,309 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. cyclomatic complexity: 13 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:18,317 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2023-02-13 03:40:18,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2023-02-13 03:40:18,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-02-13 03:40:18,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 38 transitions. [2023-02-13 03:40:18,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-02-13 03:40:18,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-02-13 03:40:18,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2023-02-13 03:40:18,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:18,319 INFO L220 hiAutomatonCegarLoop]: Abstraction has 27 states and 38 transitions. [2023-02-13 03:40:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2023-02-13 03:40:18,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-02-13 03:40:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2023-02-13 03:40:18,321 INFO L242 hiAutomatonCegarLoop]: Abstraction has 24 states and 34 transitions. [2023-02-13 03:40:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:18,322 INFO L426 stractBuchiCegarLoop]: Abstraction has 24 states and 34 transitions. [2023-02-13 03:40:18,322 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:18,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 34 transitions. [2023-02-13 03:40:18,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-02-13 03:40:18,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,323 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,323 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:40:18,323 INFO L733 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 470#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 475#L12 [2023-02-13 03:40:18,324 INFO L735 eck$LassoCheckResult]: Loop: 475#L12 [45] L12-->L16: Formula: (>= (+ |v_ULTIMATE.start_main_~w~0#1_5| |v_ULTIMATE.start_main_~i~0#1_9|) 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} AuxVars[] AssignedVars[] 477#L16 [31] L16-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~i~0#1_10| 1) 0) (< |v_ULTIMATE.start_main_~w~0#1_6| |v_ULTIMATE.start_main_~i~0#1_12|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 484#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 482#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 475#L12 [2023-02-13 03:40:18,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2527, now seen corresponding path program 3 times [2023-02-13 03:40:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,324 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287900162] [2023-02-13 03:40:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,327 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2295008, now seen corresponding path program 1 times [2023-02-13 03:40:18,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,330 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755292276] [2023-02-13 03:40:18,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:18,341 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755292276] [2023-02-13 03:40:18,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755292276] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:18,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:18,341 ERROR L191 FreeRefinementEngine]: {490#true} [492#(<= 0 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~w~0#1|)), 493#(<= (+ 2 |ULTIMATE.start_main_~i~0#1|) 0), 493#(<= (+ 2 |ULTIMATE.start_main_~i~0#1|) 0)] {491#false} [2023-02-13 03:40:18,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:18,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255653411] [2023-02-13 03:40:18,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:18,342 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:18,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:18,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 03:40:18,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-13 03:40:18,342 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. cyclomatic complexity: 13 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:18,361 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2023-02-13 03:40:18,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2023-02-13 03:40:18,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-02-13 03:40:18,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 38 transitions. [2023-02-13 03:40:18,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-02-13 03:40:18,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-02-13 03:40:18,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2023-02-13 03:40:18,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:18,363 INFO L220 hiAutomatonCegarLoop]: Abstraction has 29 states and 38 transitions. [2023-02-13 03:40:18,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2023-02-13 03:40:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-02-13 03:40:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-02-13 03:40:18,366 INFO L242 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-02-13 03:40:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-13 03:40:18,368 INFO L426 stractBuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-02-13 03:40:18,368 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:18,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2023-02-13 03:40:18,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2023-02-13 03:40:18,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,370 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,370 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-13 03:40:18,371 INFO L733 eck$LassoCheckResult]: Stem: 530#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 531#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 543#L12 [2023-02-13 03:40:18,371 INFO L735 eck$LassoCheckResult]: Loop: 543#L12 [45] L12-->L16: Formula: (>= (+ |v_ULTIMATE.start_main_~w~0#1_5| |v_ULTIMATE.start_main_~i~0#1_9|) 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} AuxVars[] AssignedVars[] 553#L16 [46] L16-->L16-2: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_13| 0) (>= |v_ULTIMATE.start_main_~w~0#1_7| |v_ULTIMATE.start_main_~i~0#1_14|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_14|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_13|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 527#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 547#L11-2 [48] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 543#L12 [2023-02-13 03:40:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2527, now seen corresponding path program 4 times [2023-02-13 03:40:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,373 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483983664] [2023-02-13 03:40:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,378 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2309424, now seen corresponding path program 1 times [2023-02-13 03:40:18,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,383 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109458533] [2023-02-13 03:40:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:18,395 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109458533] [2023-02-13 03:40:18,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109458533] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:18,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:18,396 ERROR L191 FreeRefinementEngine]: {557#true} [557#true, 559#(<= 0 |ULTIMATE.start_main_~i~0#1|), 559#(<= 0 |ULTIMATE.start_main_~i~0#1|)] {558#false} [2023-02-13 03:40:18,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:18,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383758064] [2023-02-13 03:40:18,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:18,396 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:18,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:18,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:18,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:18,397 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 12 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:18,406 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2023-02-13 03:40:18,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2023-02-13 03:40:18,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-02-13 03:40:18,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 23 states and 26 transitions. [2023-02-13 03:40:18,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-02-13 03:40:18,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2023-02-13 03:40:18,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2023-02-13 03:40:18,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:18,407 INFO L220 hiAutomatonCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-13 03:40:18,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2023-02-13 03:40:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2023-02-13 03:40:18,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-02-13 03:40:18,409 INFO L242 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-02-13 03:40:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:18,410 INFO L426 stractBuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-02-13 03:40:18,410 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-13 03:40:18,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2023-02-13 03:40:18,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-02-13 03:40:18,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,411 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,411 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2023-02-13 03:40:18,411 INFO L733 eck$LassoCheckResult]: Stem: 591#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 592#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 599#L12 [2023-02-13 03:40:18,411 INFO L735 eck$LassoCheckResult]: Loop: 599#L12 [45] L12-->L16: Formula: (>= (+ |v_ULTIMATE.start_main_~w~0#1_5| |v_ULTIMATE.start_main_~i~0#1_9|) 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} AuxVars[] AssignedVars[] 605#L16 [31] L16-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~i~0#1_10| 1) 0) (< |v_ULTIMATE.start_main_~w~0#1_6| |v_ULTIMATE.start_main_~i~0#1_12|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 604#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 603#L11-2 [48] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 595#L12 [41] L12-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_8| |v_ULTIMATE.start_main_~i~0#1_6|) 1) (< (+ |v_ULTIMATE.start_main_~w~0#1_4| |v_ULTIMATE.start_main_~i~0#1_8|) 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 596#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 598#L11-2 [48] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 599#L12 [2023-02-13 03:40:18,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2527, now seen corresponding path program 5 times [2023-02-13 03:40:18,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,412 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816996420] [2023-02-13 03:40:18,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,414 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash -348823114, now seen corresponding path program 1 times [2023-02-13 03:40:18,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,416 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178374473] [2023-02-13 03:40:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:18,427 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178374473] [2023-02-13 03:40:18,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178374473] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:18,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:18,427 ERROR L191 FreeRefinementEngine]: {609#true} [609#true, 609#true, 609#true, 611#(<= (+ |ULTIMATE.start_main_~i~0#1| 1) 0), 612#(<= 2 |ULTIMATE.start_main_~i~0#1|), 612#(<= 2 |ULTIMATE.start_main_~i~0#1|)] {610#false} [2023-02-13 03:40:18,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-13 03:40:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734018567] [2023-02-13 03:40:18,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:18,427 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:18,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:18,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 03:40:18,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-13 03:40:18,428 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:18,436 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2023-02-13 03:40:18,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 26 transitions. [2023-02-13 03:40:18,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-02-13 03:40:18,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 26 transitions. [2023-02-13 03:40:18,436 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-02-13 03:40:18,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-02-13 03:40:18,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2023-02-13 03:40:18,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:18,437 INFO L220 hiAutomatonCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-02-13 03:40:18,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2023-02-13 03:40:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 10. [2023-02-13 03:40:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-02-13 03:40:18,438 INFO L242 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-02-13 03:40:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 03:40:18,439 INFO L426 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-02-13 03:40:18,439 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-13 03:40:18,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2023-02-13 03:40:18,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:18,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,439 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,439 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2023-02-13 03:40:18,439 INFO L733 eck$LassoCheckResult]: Stem: 639#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L11-2: Formula: (= 5 |v_ULTIMATE.start_main_~w~0#1_10|) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_10|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~w~0#1, ULTIMATE.start_main_#t~nondet0#1] 640#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 643#L12 [2023-02-13 03:40:18,439 INFO L735 eck$LassoCheckResult]: Loop: 643#L12 [45] L12-->L16: Formula: (>= (+ |v_ULTIMATE.start_main_~w~0#1_5| |v_ULTIMATE.start_main_~i~0#1_9|) 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_5|} AuxVars[] AssignedVars[] 637#L16 [31] L16-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~i~0#1_10| 1) 0) (< |v_ULTIMATE.start_main_~w~0#1_6| |v_ULTIMATE.start_main_~i~0#1_12|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_10|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 638#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 641#L11-2 [48] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 644#L12 [41] L12-->L16-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~i~0#1_8| |v_ULTIMATE.start_main_~i~0#1_6|) 1) (< (+ |v_ULTIMATE.start_main_~w~0#1_4| |v_ULTIMATE.start_main_~i~0#1_8|) 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 645#L16-2 [34] L16-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~w~0#1_8| (+ |v_ULTIMATE.start_main_~w~0#1_9| 1)) InVars {ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_9|} OutVars{ULTIMATE.start_main_~w~0#1=|v_ULTIMATE.start_main_~w~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0#1] 642#L11-2 [47] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~i~0#1_5| 0) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[] 643#L12 [2023-02-13 03:40:18,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2527, now seen corresponding path program 6 times [2023-02-13 03:40:18,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,440 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199306713] [2023-02-13 03:40:18,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,442 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,444 INFO L85 PathProgramCache]: Analyzing trace with hash -348823115, now seen corresponding path program 1 times [2023-02-13 03:40:18,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,444 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835959554] [2023-02-13 03:40:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash -351395305, now seen corresponding path program 1 times [2023-02-13 03:40:18,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,452 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305936926] [2023-02-13 03:40:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,480 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,480 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:18,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2023-02-13 03:40:18,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,492 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,503 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:18,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,516 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:18,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,517 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,519 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,519 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:40:18,521 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:18,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,529 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,529 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,543 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:18,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,543 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,544 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,545 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:18,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,563 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:18,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,564 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,564 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,565 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:18,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:18,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=7, ULTIMATE.start_main_~w~0#1=-3} Honda state: {ULTIMATE.start_main_~i~0#1=7, ULTIMATE.start_main_~w~0#1=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~w~0#1=0}, {ULTIMATE.start_main_~i~0#1=1, ULTIMATE.start_main_~w~0#1=1}, {ULTIMATE.start_main_~i~0#1=1, ULTIMATE.start_main_~w~0#1=1}] Lambdas: [9, 0, 1] Nus: [0, 1] [2023-02-13 03:40:18,602 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:18,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,603 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,604 INFO L229 MonitoredProcess]: Starting monitored process 20 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,610 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:18,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,618 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,619 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,635 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:18,650 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,651 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:18,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Lasso [2023-02-13 03:40:18,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,652 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,658 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,672 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,754 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:18,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,754 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,755 INFO L229 MonitoredProcess]: Starting monitored process 21 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,757 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:18,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,766 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,766 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,781 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:18,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,781 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,783 INFO L229 MonitoredProcess]: Starting monitored process 22 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,784 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:18,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,824 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:18,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,824 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,825 INFO L229 MonitoredProcess]: Starting monitored process 23 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,827 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:18,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:18,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,872 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,873 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~w~0#1=0, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~w~0#1=5, ULTIMATE.start_main_~i~0#1=6} Generalized eigenvectors: [{ULTIMATE.start_main_~w~0#1=0, ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~w~0#1=1, ULTIMATE.start_main_~i~0#1=1}, {ULTIMATE.start_main_~w~0#1=1, ULTIMATE.start_main_~i~0#1=1}] Lambdas: [0, 0, 1] Nus: [0, 1] [2023-02-13 03:40:18,889 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:18,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,890 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,891 INFO L229 MonitoredProcess]: Starting monitored process 24 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,892 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:18,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,898 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,899 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,930 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:18,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,931 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,933 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:18,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,945 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,979 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:18,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,980 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,982 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,983 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:40:18,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,001 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,030 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:19,048 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,049 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,050 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,050 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,051 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,051 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:19 BasicIcfg [2023-02-13 03:40:19,062 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:19,062 INFO L158 Benchmark]: Toolchain (without parser) took 2621.23ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -412.7MB). Peak memory consumption was 119.6MB. Max. memory is 42.9GB. [2023-02-13 03:40:19,062 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:19,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 105.44ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:19,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.26ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:19,063 INFO L158 Benchmark]: Boogie Preprocessor took 8.69ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:19,064 INFO L158 Benchmark]: RCFGBuilder took 209.56ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:19,064 INFO L158 Benchmark]: BlockEncodingV2 took 35.79ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:19,064 INFO L158 Benchmark]: TraceAbstraction took 13.14ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:19,064 INFO L158 Benchmark]: BuchiAutomizer took 2226.01ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -443.6MB). Peak memory consumption was 86.0MB. Max. memory is 42.9GB. [2023-02-13 03:40:19,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 105.44ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 18.26ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 8.69ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 209.56ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). There was no memory consumed. Max. memory is 42.9GB. * BlockEncodingV2 took 35.79ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.14ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * BuchiAutomizer took 2226.01ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -443.6MB). Peak memory consumption was 86.0MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (5 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 9 locations. One nondeterministic module has affine ranking function i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 74 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 22 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax155 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp100 dnf100 smp100 tf105 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 12]: Nontermination argument in form of an infinite program execution. [2023-02-13 03:40:19,079 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,080 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,081 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,082 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,083 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:19,085 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:19,085 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {i=0, w=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@341986b9=0, \result=0} State at position 1 is {i=6, w=5, ~unnamed0~0~true=1, ~unnamed0~0~false=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@341986b9=0, \result=0} For i>1, the state at position i is {i=6 + sum_{k=0}^i 1*0^k + 1 + 1*k*0^(k-1), w=5 + sum_{k=0}^i 1*0^k + 1 + 1*k*0^(k-1), ~unnamed0~0~true=1 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@341986b9=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [0, 0, 1] Mus: [0, 1] - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int w; [L8] i = __VERIFIER_nondet_int() [L9] w = 5 [L11] COND TRUE i != 0 Loop: [L12] COND FALSE !(i < -w) [L16] COND TRUE i > w [L17] i = i+1 [L18] i = i*(-1) [L23] w = w+1 [L11] COND TRUE i != 0 [L12] COND TRUE i < -w [L13] i = i-1 [L14] i = i*(-1) [L23] w = w+1 [L11] COND TRUE i != 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:40:19,130 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...