YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:39:45,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:39:45,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:39:45,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:39:45,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:39:45,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:39:45,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:39:45,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:39:45,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:39:45,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:39:45,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:39:45,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:39:45,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:39:45,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:39:45,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:39:45,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:39:45,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:39:45,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:39:45,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:39:45,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:39:45,842 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:39:45,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:39:45,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:39:45,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:39:45,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:39:45,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:39:45,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:39:45,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:39:45,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:39:45,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:39:45,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:39:45,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:39:45,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:39:45,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:39:45,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:39:45,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:39:45,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:39:45,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:39:45,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:39:45,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:39:45,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:39:45,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:39:45,850 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:39:45,861 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:39:45,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:39:45,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:39:45,862 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:39:45,862 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:45,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:39:45,863 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:39:45,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:39:45,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:39:45,864 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:39:45,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:45,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:39:45,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:39:45,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:39:45,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:39:45,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:39:46,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:39:46,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:39:46,006 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:39:46,006 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:39:46,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:46,045 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/4f6a98b0ccbc45cf984b65c98256ef17/FLAG074501af3 [2023-02-13 03:39:46,440 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:39:46,440 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:46,446 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/4f6a98b0ccbc45cf984b65c98256ef17/FLAG074501af3 [2023-02-13 03:39:46,468 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/4f6a98b0ccbc45cf984b65c98256ef17 [2023-02-13 03:39:46,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:39:46,472 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:39:46,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:46,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:39:46,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:39:46,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6d3079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:39:46,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:39:46,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:46,559 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:39:46,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:46,572 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:39:46,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46 WrapperNode [2023-02-13 03:39:46,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:46,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:46,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:39:46,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:39:46,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,605 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-13 03:39:46,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:46,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:39:46,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:39:46,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:39:46,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:39:46,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:39:46,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:39:46,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:39:46,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:46,632 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:46,649 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 03:39:46,652 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 03:39:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:39:46,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:39:46,732 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:39:46,734 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:39:46,781 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:39:46,786 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:39:46,786 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:39:46,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:46 BoogieIcfgContainer [2023-02-13 03:39:46,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:39:46,788 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:39:46,788 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:39:46,789 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:39:46,790 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:46" (1/1) ... [2023-02-13 03:39:46,798 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 11 edges [2023-02-13 03:39:46,799 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:39:46,799 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:39:46,799 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:39:46,799 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:46,800 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:39:46,800 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:39:46,800 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:39:46,807 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:39:46,812 INFO L200 BlockEncoder]: SBE split 1 edges [2023-02-13 03:39:46,814 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:39:46,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:46,819 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:39:46,820 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:39:46,821 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:39:46,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:46,821 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:39:46,821 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:39:46,821 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2023-02-13 03:39:46,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:46 BasicIcfg [2023-02-13 03:39:46,821 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:39:46,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:39:46,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:39:46,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:39:46,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:39:46" (1/4) ... [2023-02-13 03:39:46,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f53de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (2/4) ... [2023-02-13 03:39:46,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f53de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:46" (3/4) ... [2023-02-13 03:39:46,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f53de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:46" (4/4) ... [2023-02-13 03:39:46,826 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:46,836 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:39:46,836 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:39:46,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f53de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:39:46,837 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:39:46,837 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:39:46,839 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:39:46,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:46,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:39:46" (1/4) ... [2023-02-13 03:39:46,840 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62866942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:46,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:46" (2/4) ... [2023-02-13 03:39:46,840 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62866942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:46,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:46" (3/4) ... [2023-02-13 03:39:46,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62866942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:46, skipping insertion in model container [2023-02-13 03:39:46,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:46,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:46" (4/4) ... [2023-02-13 03:39:46,841 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:46,875 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:39:46,875 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:39:46,875 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:39:46,876 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:39:46,876 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:39:46,876 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:39:46,876 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:39:46,876 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:39:46,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 03:39:46,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:46,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:46,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:46,891 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:46,891 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:39:46,891 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:39:46,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 03:39:46,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:46,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:46,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:46,892 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:46,892 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:39:46,895 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_6| 0) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 4#L11-2true [2023-02-13 03:39:46,895 INFO L735 eck$LassoCheckResult]: Loop: 4#L11-2true [39] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 5#L12true [34] L12-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 2#L12-2true [26] L12-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_4| (+ |v_ULTIMATE.start_main_~c~0#1_5| 1)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0#1] 4#L11-2true [2023-02-13 03:39:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:46,899 INFO L85 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 1 times [2023-02-13 03:39:46,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:46,904 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812456887] [2023-02-13 03:39:46,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:46,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:46,949 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:46,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash 68350, now seen corresponding path program 1 times [2023-02-13 03:39:46,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:46,962 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921840467] [2023-02-13 03:39:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:46,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:46,997 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 03:39:46,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:46,997 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921840467] [2023-02-13 03:39:46,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921840467] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:46,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:46,998 ERROR L191 FreeRefinementEngine]: {10#true} [12#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|), 11#false] {11#false} [2023-02-13 03:39:46,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:39:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958271216] [2023-02-13 03:39:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:47,002 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:39:47,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:47,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:47,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:47,022 INFO L87 Difference]: Start difference. First operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 03:39:47,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:47,033 INFO L93 Difference]: Finished difference Result 5 states and 7 transitions. [2023-02-13 03:39:47,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2023-02-13 03:39:47,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:39:47,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 7 transitions. [2023-02-13 03:39:47,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:39:47,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:39:47,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2023-02-13 03:39:47,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:47,037 INFO L220 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-13 03:39:47,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2023-02-13 03:39:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-13 03:39:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) 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 03:39:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2023-02-13 03:39:47,051 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-13 03:39:47,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:47,056 INFO L426 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-13 03:39:47,056 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:39:47,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2023-02-13 03:39:47,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:39:47,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:47,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:47,057 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:47,057 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:39:47,057 INFO L733 eck$LassoCheckResult]: Stem: 20#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_6| 0) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 19#L11-2 [2023-02-13 03:39:47,057 INFO L735 eck$LassoCheckResult]: Loop: 19#L11-2 [39] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 21#L12 [38] L12-->L12-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1)) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 18#L12-2 [26] L12-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_4| (+ |v_ULTIMATE.start_main_~c~0#1_5| 1)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0#1] 19#L11-2 [2023-02-13 03:39:47,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 2 times [2023-02-13 03:39:47,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:47,058 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167545889] [2023-02-13 03:39:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:47,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:47,061 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:47,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:47,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:47,063 INFO L85 PathProgramCache]: Analyzing trace with hash 68474, now seen corresponding path program 1 times [2023-02-13 03:39:47,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:47,064 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965445994] [2023-02-13 03:39:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:47,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:47,071 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:47,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:47,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2183635, now seen corresponding path program 1 times [2023-02-13 03:39:47,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:47,075 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146113700] [2023-02-13 03:39:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:47,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:47,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:47,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:47,113 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:47,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:47,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:47,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:47,114 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:47,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:47,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:47,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:39:47,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:47,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:47,122 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 03:39:47,130 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 03:39:47,132 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 03:39:47,134 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 03:39:47,168 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:47,168 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:47,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,170 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,170 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 03:39:47,177 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 03:39:47,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:47,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:47,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:47,190 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 03:39:47,207 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 03:39:47,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,208 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,208 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 03:39:47,209 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 03:39:47,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:47,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:47,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:47,217 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 03:39:47,235 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:47,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,236 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,237 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 03:39:47,251 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 03:39:47,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:47,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:47,290 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:39:47,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,290 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,291 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 03:39:47,293 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 03:39:47,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:47,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:47,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:47,311 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2023-02-13 03:39:47,325 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 03:39:47,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,326 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,327 INFO L229 MonitoredProcess]: Starting monitored process 6 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 03:39:47,328 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:39:47,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:47,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:47,372 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:39:47,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:47,373 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,374 INFO L229 MonitoredProcess]: Starting monitored process 7 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 03:39:47,375 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:39:47,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:47,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:47,514 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:47,515 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:47,516 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:47,516 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:47,517 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:47,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:47,517 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:47,517 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:47,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:47,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:47,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:39:47,519 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:47,519 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:47,522 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 03:39:47,527 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 03:39:47,532 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 03:39:47,537 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 03:39:47,608 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:47,616 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:47,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:47,619 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,620 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 03:39:47,622 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 03:39:47,623 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 03:39:47,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:47,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:47,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:47,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:47,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:47,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:47,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:47,676 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 03:39:47,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:47,677 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,679 INFO L229 MonitoredProcess]: Starting monitored process 9 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 03:39:47,680 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:39:47,680 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 03:39:47,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:47,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:47,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:47,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:47,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:47,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:47,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:47,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:47,726 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:39:47,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:47,727 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,729 INFO L229 MonitoredProcess]: Starting monitored process 10 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 03:39:47,730 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:39:47,733 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 03:39:47,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:47,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:47,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:47,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:47,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:47,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:47,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:47,792 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:47,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:47,793 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,794 INFO L229 MonitoredProcess]: Starting monitored process 11 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 03:39:47,795 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:39:47,797 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 03:39:47,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:47,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:47,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:47,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:47,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:47,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:47,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:47,811 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:47,816 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:39:47,817 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:39:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:47,818 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:47,820 INFO L229 MonitoredProcess]: Starting monitored process 12 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 03:39:47,822 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:39:47,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:47,826 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:39:47,826 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:47,827 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:39:47,858 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:39:47,866 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:39:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:47,908 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:39:47,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:47,922 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:39:47,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:47,983 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 03:39:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:48,017 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:39:48,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:48,038 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:39:48,045 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 03:39:48,047 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 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 03:39:48,094 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. 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 15 states and 21 transitions. Complement of second has 6 states. [2023-02-13 03:39:48,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:39:48,098 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 03:39:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-02-13 03:39:48,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:39:48,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:48,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:39:48,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:48,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:39:48,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:48,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2023-02-13 03:39:48,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:39:48,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2023-02-13 03:39:48,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:39:48,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-13 03:39:48,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2023-02-13 03:39:48,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:48,110 INFO L220 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-02-13 03:39:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2023-02-13 03:39:48,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-02-13 03:39:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 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 03:39:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2023-02-13 03:39:48,113 INFO L242 hiAutomatonCegarLoop]: Abstraction has 11 states and 17 transitions. [2023-02-13 03:39:48,113 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2023-02-13 03:39:48,113 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:39:48,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 17 transitions. [2023-02-13 03:39:48,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:39:48,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:48,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:48,114 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:39:48,114 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:39:48,115 INFO L733 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_6| 0) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 88#L11-2 [40] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 89#L12 [34] L12-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 82#L12-2 [2023-02-13 03:39:48,115 INFO L735 eck$LassoCheckResult]: Loop: 82#L12-2 [26] L12-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_4| (+ |v_ULTIMATE.start_main_~c~0#1_5| 1)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0#1] 83#L11-2 [39] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 91#L12 [38] L12-->L12-2: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_1| (+ |v_ULTIMATE.start_main_~x~0#1_2| 1)) (>= |v_ULTIMATE.start_main_~y~0#1_1| |v_ULTIMATE.start_main_~x~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_2|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 82#L12-2 [2023-02-13 03:39:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash 70466, now seen corresponding path program 1 times [2023-02-13 03:39:48,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:48,116 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836407130] [2023-02-13 03:39:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:48,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,121 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash 56024, now seen corresponding path program 2 times [2023-02-13 03:39:48,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:48,124 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479568098] [2023-02-13 03:39:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:48,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:48,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2099278839, now seen corresponding path program 1 times [2023-02-13 03:39:48,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:48,130 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242313779] [2023-02-13 03:39:48,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:48,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:39:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:48,149 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242313779] [2023-02-13 03:39:48,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242313779] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:48,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:48,152 ERROR L191 FreeRefinementEngine]: {98#true} [98#true, 100#(<= (+ |ULTIMATE.start_main_~y~0#1| 1) |ULTIMATE.start_main_~x~0#1|), 101#(<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|), 101#(<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|), 99#false] {99#false} [2023-02-13 03:39:48,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-13 03:39:48,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019617863] [2023-02-13 03:39:48,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:48,174 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:48,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:48,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:48,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:48,175 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:48,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:48,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:48,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:39:48,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:48,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:48,176 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 03:39:48,178 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 03:39:48,180 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 03:39:48,185 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 03:39:48,223 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:48,223 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:48,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,224 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,225 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:39:48,229 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:39:48,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:48,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:48,241 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:48,241 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 03:39:48,269 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:39:48,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,269 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,270 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:39:48,271 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:39:48,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:48,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:48,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:39:48,287 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 03:39:48,315 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:39:48,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,315 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,316 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:39:48,321 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:39:48,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:48,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:48,368 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:39:48,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,369 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,370 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:39:48,371 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:39:48,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:48,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:48,484 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:48,487 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:48,487 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:48,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:48,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:48,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:48,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:48,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:48,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:48,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:48,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:39:48,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:48,490 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:48,492 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 03:39:48,496 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 03:39:48,503 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 03:39:48,507 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 03:39:48,558 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:48,558 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:48,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:48,559 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,561 INFO L229 MonitoredProcess]: Starting monitored process 17 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 03:39:48,562 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:39:48,563 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 03:39:48,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:48,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:48,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:48,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:48,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:39:48,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:39:48,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:39:48,620 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:39:48,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,622 INFO L229 MonitoredProcess]: Starting monitored process 18 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 03:39:48,623 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:39:48,624 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 03:39:48,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:48,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:48,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:48,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:48,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:48,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:48,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:48,634 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:48,639 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:39:48,640 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:39:48,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:48,641 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,642 INFO L229 MonitoredProcess]: Starting monitored process 19 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 03:39:48,645 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:39:48,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:48,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:39:48,646 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:48,647 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:39:48,672 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:39:48,673 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:39:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:48,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:39:48,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:48,701 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:39:48,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:48,724 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 03:39:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:48,737 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:39:48,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:48,756 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:39:48,756 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 3 loop predicates [2023-02-13 03:39:48,756 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:39:48,786 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 17 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 15 states and 22 transitions. Complement of second has 6 states. [2023-02-13 03:39:48,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:39:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:39:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-13 03:39:48,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2023-02-13 03:39:48,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:48,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-13 03:39:48,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:48,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2023-02-13 03:39:48,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:48,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2023-02-13 03:39:48,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:39:48,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 21 transitions. [2023-02-13 03:39:48,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:39:48,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:39:48,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-02-13 03:39:48,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:48,796 INFO L220 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-02-13 03:39:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-02-13 03:39:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 8. [2023-02-13 03:39:48,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 03:39:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2023-02-13 03:39:48,799 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 13 transitions. [2023-02-13 03:39:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:48,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 03:39:48,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-13 03:39:48,800 INFO L87 Difference]: Start difference. First operand 8 states and 13 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:39:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:48,817 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2023-02-13 03:39:48,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2023-02-13 03:39:48,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:48,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 11 transitions. [2023-02-13 03:39:48,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-13 03:39:48,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-13 03:39:48,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2023-02-13 03:39:48,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:39:48,820 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-02-13 03:39:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2023-02-13 03:39:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-13 03:39:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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 03:39:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-02-13 03:39:48,822 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-13 03:39:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 03:39:48,825 INFO L426 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-13 03:39:48,825 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:39:48,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-02-13 03:39:48,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:48,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:48,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:48,826 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:39:48,826 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:39:48,826 INFO L733 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_6| 0) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 182#L11-2 [40] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 183#L12 [2023-02-13 03:39:48,827 INFO L735 eck$LassoCheckResult]: Loop: 183#L12 [34] L12-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~y~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|) (= (+ |v_ULTIMATE.start_main_~y~0#1_8| 1) |v_ULTIMATE.start_main_~y~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 177#L12-2 [26] L12-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_4| (+ |v_ULTIMATE.start_main_~c~0#1_5| 1)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0#1] 178#L11-2 [40] L11-2-->L12: Formula: (> |v_ULTIMATE.start_main_~x~0#1_7| |v_ULTIMATE.start_main_~y~0#1_6|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[] 183#L12 [2023-02-13 03:39:48,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2272, now seen corresponding path program 1 times [2023-02-13 03:39:48,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:48,828 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698291475] [2023-02-13 03:39:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:48,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,833 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash 63311, now seen corresponding path program 1 times [2023-02-13 03:39:48,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:48,837 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931501755] [2023-02-13 03:39:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:48,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:48,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash 67718672, now seen corresponding path program 1 times [2023-02-13 03:39:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:48,845 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110576210] [2023-02-13 03:39:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:48,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:48,864 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:48,864 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:48,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:48,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:48,865 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:39:48,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:48,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:48,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:39:48,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:48,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:48,866 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 03:39:48,869 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 03:39:48,870 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 03:39:48,872 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 03:39:48,891 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:48,891 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:39:48,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,891 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,892 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 03:39:48,896 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 03:39:48,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:39:48,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:48,918 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 03:39:48,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:48,918 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:48,919 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 03:39:48,919 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 03:39:48,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:39:48,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:39:49,113 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:39:49,115 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 03:39:49,116 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:39:49,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:39:49,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:39:49,116 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:39:49,117 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:39:49,117 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:49,117 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:39:49,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:39:49,118 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:39:49,118 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:39:49,118 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:39:49,120 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 03:39:49,128 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 03:39:49,131 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 03:39:49,135 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 03:39:49,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:39:49,171 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:39:49,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:49,171 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:49,172 INFO L229 MonitoredProcess]: Starting monitored process 22 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 03:39:49,174 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:39:49,174 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 03:39:49,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:39:49,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:39:49,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:39:49,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:39:49,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:39:49,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:39:49,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:39:49,182 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:39:49,185 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:39:49,185 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:39:49,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:39:49,185 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:49,186 INFO L229 MonitoredProcess]: Starting monitored process 23 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 03:39:49,188 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:39:49,188 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:39:49,189 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:39:49,189 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:39:49,189 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:39:49,221 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:39:49,222 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:39:49,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:49,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:39:49,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:49,243 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:39:49,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:39:49,258 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 03:39:49,260 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:39:49,260 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 03:39:49,261 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 10 transitions. cyclomatic complexity: 4 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 03:39:49,283 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 10 transitions. cyclomatic complexity: 4. 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 12 states and 14 transitions. Complement of second has 6 states. [2023-02-13 03:39:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:39:49,285 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 03:39:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-02-13 03:39:49,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:39:49,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:49,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:39:49,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:49,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:39:49,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:39:49,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2023-02-13 03:39:49,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:39:49,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-13 03:39:49,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:39:49,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:39:49,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:39:49,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:49,292 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:39:49,292 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:39:49,292 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:39:49,292 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:39:49,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:39:49,292 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:39:49,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:39:49,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:49 BasicIcfg [2023-02-13 03:39:49,303 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:39:49,304 INFO L158 Benchmark]: Toolchain (without parser) took 2831.94ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 97.9MB). Peak memory consumption was 91.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:49,304 INFO L158 Benchmark]: CDTParser took 0.18ms. 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 03:39:49,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 98.72ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:49,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.08ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:49,306 INFO L158 Benchmark]: Boogie Preprocessor took 10.02ms. 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 03:39:49,306 INFO L158 Benchmark]: RCFGBuilder took 171.34ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:49,307 INFO L158 Benchmark]: BlockEncodingV2 took 33.28ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:39:49,307 INFO L158 Benchmark]: TraceAbstraction took 14.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:49,307 INFO L158 Benchmark]: BuchiAutomizer took 2466.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 67.7MB). Peak memory consumption was 57.8MB. Max. memory is 42.9GB. [2023-02-13 03:39:49,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 98.72ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 33.08ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 10.02ms. 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 171.34ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 33.28ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 14.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 2466.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 67.7MB). Peak memory consumption was 57.8MB. Max. memory is 42.9GB. * 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 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 13 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:39:49,333 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-13 03:39:49,559 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:39:49,766 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:39:49,964 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Ended with exit code 0 Received shutdown request...