YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:15,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:15,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:15,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:15,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:15,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:15,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:15,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:15,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:15,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:15,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:15,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:15,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:15,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:15,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:15,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:15,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:15,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:15,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:15,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:15,811 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:15,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:15,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:15,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:15,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:15,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:15,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:15,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:15,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:15,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:15,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:15,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:15,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:15,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:15,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:15,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:15,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:15,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:15,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:15,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:15,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:15,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:15,820 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:15,830 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:15,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:15,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:15,831 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:15,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:15,831 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:15,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:15,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:15,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:15,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:15,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:15,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:15,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:15,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:15,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:15,970 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:15,971 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:15,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,017 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3fb6721ed2d14fb29cce462296465b1c/FLAG11e69c888 [2023-02-13 03:40:16,392 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:16,393 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,398 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3fb6721ed2d14fb29cce462296465b1c/FLAG11e69c888 [2023-02-13 03:40:16,411 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3fb6721ed2d14fb29cce462296465b1c [2023-02-13 03:40:16,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:16,414 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:16,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:16,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:16,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8204c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:16,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:16,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,523 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:16,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,536 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:16,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16 WrapperNode [2023-02-13 03:40:16,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:16,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:16,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,561 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-02-13 03:40:16,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:16,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:16,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:16,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:16,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:16,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:16,585 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:16,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:16,603 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:16,686 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:16,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:16,757 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:16,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:16,765 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-13 03:40:16,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16 BoogieIcfgContainer [2023-02-13 03:40:16,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:16,767 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:16,768 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:16,769 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:16,770 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,784 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 23 edges [2023-02-13 03:40:16,785 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:16,785 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:16,785 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:16,785 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:16,786 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:16,787 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:16,787 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:16,796 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:16,802 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:40:16,804 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2023-02-13 03:40:16,805 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:16,812 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2023-02-13 03:40:16,814 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2023-02-13 03:40:16,815 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:16,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:16,815 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:16,815 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:16,815 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 14 edges [2023-02-13 03:40:16,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16 BasicIcfg [2023-02-13 03:40:16,816 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:16,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:16,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:16,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:16,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:16,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53925c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:16,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53925c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (3/4) ... [2023-02-13 03:40:16,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53925c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16" (4/4) ... [2023-02-13 03:40:16,821 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:16,830 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:16,830 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:16,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53925c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:16,831 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:16,831 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:16,833 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:16,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:16,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a0ebde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:16,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a0ebde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:16" (3/4) ... [2023-02-13 03:40:16,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a0ebde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:16,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:16" (4/4) ... [2023-02-13 03:40:16,835 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:16,863 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:16,863 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:16,863 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:16,863 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:16,863 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:16,863 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:16,863 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:16,864 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:16,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:16,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:16,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:16,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:16,879 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:16,879 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:16,879 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:16,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:16,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:16,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:16,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:16,880 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:16,880 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:16,883 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [96] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_16|, 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_~tmp~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 6#L13-2true [2023-02-13 03:40:16,883 INFO L735 eck$LassoCheckResult]: Loop: 6#L13-2true [77] L13-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_5|) (= |v_ULTIMATE.start_main_~tmp~0#1_3| |v_ULTIMATE.start_main_~y~0#1_8|) (= |v_ULTIMATE.start_main_~xtmp~0#1_8| |v_ULTIMATE.start_main_~x~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, 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_5|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_3|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1] 2#L17true [68] L17-->L21-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_10| |v_ULTIMATE.start_main_~y~0#1_9|) (= |v_ULTIMATE.start_main_~y~0#1_10| 0)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 8#L21-2true [88] L21-2-->L31-2: Formula: (>= 0 |v_ULTIMATE.start_main_~xtmp~0#1_7|) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|} OutVars{ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|} AuxVars[] AssignedVars[] 9#L31-2true [100] L31-2-->L25-1: Formula: (and (= |v_ULTIMATE.start_main_~xtmp~0#1_20| |v_ULTIMATE.start_main_~y~0#1_22|) (<= 0 |v_ULTIMATE.start_main_~xtmp~0#1_20|)) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_20|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_22|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_20|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 7#L25-1true [65] L25-1-->L13-2: Formula: (= |v_ULTIMATE.start_main_~tmp~0#1_4| |v_ULTIMATE.start_main_~x~0#1_6|) InVars {ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 6#L13-2true [2023-02-13 03:40:16,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash 127, now seen corresponding path program 1 times [2023-02-13 03:40:16,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:16,892 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525393897] [2023-02-13 03:40:16,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:16,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,935 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:16,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:16,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash 101853789, now seen corresponding path program 1 times [2023-02-13 03:40:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:16,947 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862543423] [2023-02-13 03:40:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:16,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:16,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:16,989 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862543423] [2023-02-13 03:40:16,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862543423] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:16,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:16,990 ERROR L191 FreeRefinementEngine]: {14#true} [16#(<= 1 |ULTIMATE.start_main_~y~0#1|), 15#false, 15#false, 15#false] {15#false} [2023-02-13 03:40:16,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:16,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532722636] [2023-02-13 03:40:16,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:16,996 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:16,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:17,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:17,019 INFO L87 Difference]: Start difference. First operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 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 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:17,034 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2023-02-13 03:40:17,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2023-02-13 03:40:17,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:17,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2023-02-13 03:40:17,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:40:17,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:40:17,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-13 03:40:17,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:17,038 INFO L220 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-13 03:40:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-13 03:40:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-13 03:40:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-13 03:40:17,052 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-13 03:40:17,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:17,058 INFO L426 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-13 03:40:17,058 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:17,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-13 03:40:17,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:17,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:17,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:17,058 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:17,058 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:17,059 INFO L733 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRY [96] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_16|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 28#L13-2 [2023-02-13 03:40:17,059 INFO L735 eck$LassoCheckResult]: Loop: 28#L13-2 [77] L13-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_5|) (= |v_ULTIMATE.start_main_~tmp~0#1_3| |v_ULTIMATE.start_main_~y~0#1_8|) (= |v_ULTIMATE.start_main_~xtmp~0#1_8| |v_ULTIMATE.start_main_~x~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, 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_5|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_3|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1] 25#L17 [95] L17-->L21: Formula: (> |v_ULTIMATE.start_main_~y~0#1_11| 0) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[] 26#L21 [89] L21-->L21-2: Formula: (>= |v_ULTIMATE.start_main_~y~0#1_14| 0) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} AuxVars[] AssignedVars[] 31#L21-2 [88] L21-2-->L31-2: Formula: (>= 0 |v_ULTIMATE.start_main_~xtmp~0#1_7|) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|} OutVars{ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|} AuxVars[] AssignedVars[] 32#L31-2 [100] L31-2-->L25-1: Formula: (and (= |v_ULTIMATE.start_main_~xtmp~0#1_20| |v_ULTIMATE.start_main_~y~0#1_22|) (<= 0 |v_ULTIMATE.start_main_~xtmp~0#1_20|)) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_20|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_22|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_20|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 30#L25-1 [65] L25-1-->L13-2: Formula: (= |v_ULTIMATE.start_main_~tmp~0#1_4| |v_ULTIMATE.start_main_~x~0#1_6|) InVars {ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 28#L13-2 [2023-02-13 03:40:17,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash 127, now seen corresponding path program 2 times [2023-02-13 03:40:17,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,060 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300363500] [2023-02-13 03:40:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,062 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1112545361, now seen corresponding path program 1 times [2023-02-13 03:40:17,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,064 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243540297] [2023-02-13 03:40:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:17,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:17,078 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243540297] [2023-02-13 03:40:17,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243540297] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:17,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:17,079 ERROR L191 FreeRefinementEngine]: {36#true} [38#(<= 1 |ULTIMATE.start_main_~xtmp~0#1|), 38#(<= 1 |ULTIMATE.start_main_~xtmp~0#1|), 38#(<= 1 |ULTIMATE.start_main_~xtmp~0#1|), 37#false, 37#false] {37#false} [2023-02-13 03:40:17,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 03:40:17,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807136295] [2023-02-13 03:40:17,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:17,079 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:17,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:17,080 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 03:40:17,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:17,087 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2023-02-13 03:40:17,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2023-02-13 03:40:17,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-13 03:40:17,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 12 transitions. [2023-02-13 03:40:17,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-02-13 03:40:17,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-13 03:40:17,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2023-02-13 03:40:17,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:17,088 INFO L220 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-02-13 03:40:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2023-02-13 03:40:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2023-02-13 03:40:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-02-13 03:40:17,089 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-13 03:40:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:17,091 INFO L426 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-13 03:40:17,091 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:17,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2023-02-13 03:40:17,092 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-13 03:40:17,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:17,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:17,092 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:17,092 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-13 03:40:17,092 INFO L733 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY [96] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_16|, 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_~tmp~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 52#L13-2 [2023-02-13 03:40:17,092 INFO L735 eck$LassoCheckResult]: Loop: 52#L13-2 [77] L13-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_5|) (= |v_ULTIMATE.start_main_~tmp~0#1_3| |v_ULTIMATE.start_main_~y~0#1_8|) (= |v_ULTIMATE.start_main_~xtmp~0#1_8| |v_ULTIMATE.start_main_~x~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, 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_5|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_3|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1] 49#L17 [95] L17-->L21: Formula: (> |v_ULTIMATE.start_main_~y~0#1_11| 0) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[] 50#L21 [89] L21-->L21-2: Formula: (>= |v_ULTIMATE.start_main_~y~0#1_14| 0) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} AuxVars[] AssignedVars[] 55#L21-2 [78] L21-2-->L26-2: Formula: (< 0 |v_ULTIMATE.start_main_~xtmp~0#1_15|) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_15|} OutVars{ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_15|} AuxVars[] AssignedVars[] 53#L26-2 [99] L26-2-->L25-1: Formula: (and (= |v_ULTIMATE.start_main_~xtmp~0#1_18| |v_ULTIMATE.start_main_~y~0#1_18|) (< |v_ULTIMATE.start_main_~xtmp~0#1_18| |v_ULTIMATE.start_main_~y~0#1_19|)) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_19|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_18|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_18|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 54#L25-1 [65] L25-1-->L13-2: Formula: (= |v_ULTIMATE.start_main_~tmp~0#1_4| |v_ULTIMATE.start_main_~x~0#1_6|) InVars {ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 52#L13-2 [2023-02-13 03:40:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,093 INFO L85 PathProgramCache]: Analyzing trace with hash 127, now seen corresponding path program 3 times [2023-02-13 03:40:17,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,093 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792647469] [2023-02-13 03:40:17,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,096 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1112555002, now seen corresponding path program 1 times [2023-02-13 03:40:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,098 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146567860] [2023-02-13 03:40:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash -956240892, now seen corresponding path program 1 times [2023-02-13 03:40:17,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,109 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114017527] [2023-02-13 03:40:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,113 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,183 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,183 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,183 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:17,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:17,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,184 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:17,241 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:17,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,243 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,245 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:17,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,272 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-13 03:40:17,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,273 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,274 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,276 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:17,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:17,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:20,675 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:20,679 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:20,679 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:20,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:20,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:20,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:20,680 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:20,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:20,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:20,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:20,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:20,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:20,681 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,684 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,686 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:20,772 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:20,781 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:20,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,784 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,788 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:20,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:20,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:20,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:20,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:20,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:20,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:20,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:20,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:20,854 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:20,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,856 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,858 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:20,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:20,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:20,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:20,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:20,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:20,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:20,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:20,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:20,919 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:20,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,920 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,921 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,924 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:20,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:20,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:20,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:20,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:20,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:20,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:20,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:20,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:20,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:20,955 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:20,956 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:20,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,958 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,959 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,962 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:20,962 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:20,963 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:20,963 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:20,963 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:40:20,988 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:20,991 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,018 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:21,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:21,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:21,173 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:21,175 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:21,176 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second 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 03:40:21,248 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second 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) Result 22 states and 27 transitions. Complement of second has 9 states. [2023-02-13 03:40:21,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:21,251 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 03:40:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2023-02-13 03:40:21,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:21,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:21,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 7 letters. Loop has 6 letters. [2023-02-13 03:40:21,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:21,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 1 letters. Loop has 12 letters. [2023-02-13 03:40:21,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:21,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2023-02-13 03:40:21,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:21,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 25 transitions. [2023-02-13 03:40:21,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:40:21,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-13 03:40:21,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2023-02-13 03:40:21,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:21,261 INFO L220 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-02-13 03:40:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2023-02-13 03:40:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2023-02-13 03:40:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2023-02-13 03:40:21,263 INFO L242 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-13 03:40:21,263 INFO L426 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-13 03:40:21,263 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:21,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2023-02-13 03:40:21,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:21,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:21,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:21,265 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-13 03:40:21,265 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:21,265 INFO L733 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY [96] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_16|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_16|, 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_~tmp~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 182#L13-2 [77] L13-2-->L17: Formula: (and (< 0 |v_ULTIMATE.start_main_~x~0#1_5|) (= |v_ULTIMATE.start_main_~tmp~0#1_3| |v_ULTIMATE.start_main_~y~0#1_8|) (= |v_ULTIMATE.start_main_~xtmp~0#1_8| |v_ULTIMATE.start_main_~x~0#1_5|) (< 0 |v_ULTIMATE.start_main_~y~0#1_8|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, 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_5|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_3|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_8|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1] 177#L17 [95] L17-->L21: Formula: (> |v_ULTIMATE.start_main_~y~0#1_11| 0) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[] 178#L21 [89] L21-->L21-2: Formula: (>= |v_ULTIMATE.start_main_~y~0#1_14| 0) InVars {ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} OutVars{ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_14|} AuxVars[] AssignedVars[] 186#L21-2 [78] L21-2-->L26-2: Formula: (< 0 |v_ULTIMATE.start_main_~xtmp~0#1_15|) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_15|} OutVars{ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_15|} AuxVars[] AssignedVars[] 183#L26-2 [2023-02-13 03:40:21,265 INFO L735 eck$LassoCheckResult]: Loop: 183#L26-2 [72] L26-2-->L26-2: Formula: (and (<= |v_ULTIMATE.start_main_~y~0#1_5| |v_ULTIMATE.start_main_~xtmp~0#1_5|) (= (+ (* (- 1) |v_ULTIMATE.start_main_~y~0#1_5|) |v_ULTIMATE.start_main_~xtmp~0#1_5|) |v_ULTIMATE.start_main_~xtmp~0#1_4|)) InVars {ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~xtmp~0#1] 183#L26-2 [2023-02-13 03:40:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash 119675206, now seen corresponding path program 1 times [2023-02-13 03:40:21,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:21,267 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220051960] [2023-02-13 03:40:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:21,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,271 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:21,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:21,275 INFO L85 PathProgramCache]: Analyzing trace with hash 103, now seen corresponding path program 1 times [2023-02-13 03:40:21,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:21,275 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254285042] [2023-02-13 03:40:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:21,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,278 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash -585035838, now seen corresponding path program 1 times [2023-02-13 03:40:21,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:21,280 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839835206] [2023-02-13 03:40:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:21,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:21,305 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:21,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:21,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:21,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:21,306 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:21,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:21,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:21,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2023-02-13 03:40:21,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:21,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:21,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,310 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:21,346 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:21,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,346 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,349 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:21,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,356 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,357 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,371 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:21,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,371 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,373 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:21,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,378 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,378 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,410 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:21,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,413 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:21,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,456 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:21,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,457 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,458 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,460 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:21,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,473 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,473 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,514 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:21,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,515 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,516 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,519 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:21,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:21,530 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:21,546 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:21,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,547 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,548 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 03:40:21,549 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 03:40:21,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:21,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,594 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 03:40:21,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:21,595 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,596 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 03:40:21,599 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 03:40:21,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:21,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:21,714 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:21,716 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 03:40:21,717 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:21,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:21,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:21,717 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:21,717 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:21,717 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,717 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:21,717 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:21,717 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Lasso [2023-02-13 03:40:21,717 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:21,717 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:21,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,747 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,750 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:21,821 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:21,822 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:21,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,823 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,824 INFO L229 MonitoredProcess]: Starting monitored process 15 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:21,828 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:21,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:21,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:21,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:21,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:21,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:21,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:21,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:21,863 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:21,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,863 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,864 INFO L229 MonitoredProcess]: Starting monitored process 16 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:21,866 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:21,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:21,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:21,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:21,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:21,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:21,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:21,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:21,902 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:21,918 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-13 03:40:21,919 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-13 03:40:21,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:21,920 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:21,922 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 03:40:21,926 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 03:40:21,927 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:21,938 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-02-13 03:40:21,938 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:21,939 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~xtmp~0#1 >= 0] [2023-02-13 03:40:21,967 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:21,973 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-02-13 03:40:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:22,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-13 03:40:22,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:22,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:22,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:22,047 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:22,047 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-02-13 03:40:22,047 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.0) 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 03:40:22,114 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 03:40:22,120 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 22 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.0) 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) Result 44 states and 57 transitions. Complement of second has 9 states. [2023-02-13 03:40:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) 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 03:40:22,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2023-02-13 03:40:22,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-13 03:40:22,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:22,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-13 03:40:22,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:22,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:40:22,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:22,122 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2023-02-13 03:40:22,123 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:22,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2023-02-13 03:40:22,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:22,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:22,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:22,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:22,123 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:22,123 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:22,123 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:22,123 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:22,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:22,123 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:22,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:22,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:22 BasicIcfg [2023-02-13 03:40:22,128 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:22,128 INFO L158 Benchmark]: Toolchain (without parser) took 5714.31ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -436.5MB). Peak memory consumption was 2.2MB. Max. memory is 42.9GB. [2023-02-13 03:40:22,128 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:22,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 121.51ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:22,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.29ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:22,129 INFO L158 Benchmark]: Boogie Preprocessor took 9.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:22,129 INFO L158 Benchmark]: RCFGBuilder took 195.44ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:22,130 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:22,130 INFO L158 Benchmark]: BlockEncodingV2 took 48.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:22,130 INFO L158 Benchmark]: TraceAbstraction took 13.92ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:22,130 INFO L158 Benchmark]: BuchiAutomizer took 5296.58ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -468.5MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:22,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 23 edges - StatisticsResult: Encoded RCFG 8 locations, 14 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 121.51ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 24.29ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 9.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 195.44ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 48.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * TraceAbstraction took 13.92ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 5296.58ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 436.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -468.5MB). There was no memory consumed. 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 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function y and consists of 6 locations. One nondeterministic module has affine ranking function 2 * xtmp + 1 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 17 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf90 smp100 dnf100 smp100 tf103 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.6s 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 03:40:22,154 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...