/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:40:09,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:40:09,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:40:09,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:40:09,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:40:09,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:40:09,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:40:09,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:40:09,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:40:09,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:40:09,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:40:09,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:40:09,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:40:09,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:40:09,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:40:09,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:40:09,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:40:09,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:40:09,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:40:09,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:40:09,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:40:09,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:40:09,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:40:09,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:40:09,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:40:09,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:40:09,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:40:09,650 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:40:09,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:40:09,650 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:40:09,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:40:09,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:40:09,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:40:09,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:40:09,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:40:09,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:40:09,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:40:09,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:40:09,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:09,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:40:09,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:40:09,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:40:09,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:40:09,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:40:09,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:40:09,925 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:40:09,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i [2022-09-16 11:40:09,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677003dc0/4ba3404f17ba4c65a3753c3728bc62b8/FLAG773529273 [2022-09-16 11:40:10,534 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:40:10,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i [2022-09-16 11:40:10,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677003dc0/4ba3404f17ba4c65a3753c3728bc62b8/FLAG773529273 [2022-09-16 11:40:10,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677003dc0/4ba3404f17ba4c65a3753c3728bc62b8 [2022-09-16 11:40:10,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:40:10,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:40:10,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:10,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:40:10,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:40:10,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:10" (1/1) ... [2022-09-16 11:40:10,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ef0979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:10, skipping insertion in model container [2022-09-16 11:40:10,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:10" (1/1) ... [2022-09-16 11:40:10,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:40:11,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:40:11,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:11,330 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:40:11,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:11,416 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:40:11,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11 WrapperNode [2022-09-16 11:40:11,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:11,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:11,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:40:11,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:40:11,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,465 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-09-16 11:40:11,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:11,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:40:11,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:40:11,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:40:11,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:40:11,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:40:11,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:40:11,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:40:11,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (1/1) ... [2022-09-16 11:40:11,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:11,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:40:11,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:40:11,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:40:11,573 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-09-16 11:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:40:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:40:11,575 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:40:11,748 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:40:11,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:40:11,991 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:40:12,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:40:12,001 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-16 11:40:12,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:12 BoogieIcfgContainer [2022-09-16 11:40:12,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:40:12,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:40:12,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:40:12,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:40:12,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:40:10" (1/3) ... [2022-09-16 11:40:12,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d32e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:12, skipping insertion in model container [2022-09-16 11:40:12,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:11" (2/3) ... [2022-09-16 11:40:12,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d32e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:12, skipping insertion in model container [2022-09-16 11:40:12,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:12" (3/3) ... [2022-09-16 11:40:12,011 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2022-09-16 11:40:12,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:40:12,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:40:12,027 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:40:12,122 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:40:12,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 172 flow [2022-09-16 11:40:12,217 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-09-16 11:40:12,217 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:40:12,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 2/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-09-16 11:40:12,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 82 transitions, 172 flow [2022-09-16 11:40:12,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 73 transitions, 149 flow [2022-09-16 11:40:12,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:40:12,253 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34a37c75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:40:12,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-09-16 11:40:12,268 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-09-16 11:40:12,268 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:12,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:12,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:12,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:12,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:12,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2186462, now seen corresponding path program 1 times [2022-09-16 11:40:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:12,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752859381] [2022-09-16 11:40:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:12,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:12,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752859381] [2022-09-16 11:40:12,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752859381] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:12,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:12,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942786392] [2022-09-16 11:40:12,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:12,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:40:12,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:12,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:40:12,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:40:12,632 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 82 [2022-09-16 11:40:12,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2022-09-16 11:40:12,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:12,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 82 [2022-09-16 11:40:12,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:12,725 INFO L130 PetriNetUnfolder]: 6/111 cut-off events. [2022-09-16 11:40:12,726 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:40:12,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 111 events. 6/111 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 251 event pairs, 0 based on Foata normal form. 6/106 useless extension candidates. Maximal degree in co-relation 104. Up to 12 conditions per place. [2022-09-16 11:40:12,728 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 15 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2022-09-16 11:40:12,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 211 flow [2022-09-16 11:40:12,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:40:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:40:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 379 transitions. [2022-09-16 11:40:12,747 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9243902439024391 [2022-09-16 11:40:12,748 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 379 transitions. [2022-09-16 11:40:12,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 379 transitions. [2022-09-16 11:40:12,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:12,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 379 transitions. [2022-09-16 11:40:12,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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) [2022-09-16 11:40:12,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2022-09-16 11:40:12,770 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2022-09-16 11:40:12,771 INFO L175 Difference]: Start difference. First operand has 75 places, 73 transitions, 149 flow. Second operand 5 states and 379 transitions. [2022-09-16 11:40:12,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 211 flow [2022-09-16 11:40:12,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:12,781 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 195 flow [2022-09-16 11:40:12,783 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2022-09-16 11:40:12,787 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, 6 predicate places. [2022-09-16 11:40:12,787 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 195 flow [2022-09-16 11:40:12,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2022-09-16 11:40:12,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:12,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:12,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:40:12,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1406972731, now seen corresponding path program 1 times [2022-09-16 11:40:12,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:12,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121851641] [2022-09-16 11:40:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:12,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:12,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121851641] [2022-09-16 11:40:12,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121851641] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:12,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:12,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:40:12,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417721771] [2022-09-16 11:40:12,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:12,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:40:12,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:40:12,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:40:12,863 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 82 [2022-09-16 11:40:12,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2022-09-16 11:40:12,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:12,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 82 [2022-09-16 11:40:12,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:12,909 INFO L130 PetriNetUnfolder]: 9/117 cut-off events. [2022-09-16 11:40:12,909 INFO L131 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2022-09-16 11:40:12,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 117 events. 9/117 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 300 event pairs, 3 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 134. Up to 15 conditions per place. [2022-09-16 11:40:12,913 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 10 selfloop transitions, 2 changer transitions 2/80 dead transitions. [2022-09-16 11:40:12,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 80 transitions, 233 flow [2022-09-16 11:40:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:40:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:40:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2022-09-16 11:40:12,923 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9227642276422764 [2022-09-16 11:40:12,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2022-09-16 11:40:12,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2022-09-16 11:40:12,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:12,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2022-09-16 11:40:12,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2022-09-16 11:40:12,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2022-09-16 11:40:12,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2022-09-16 11:40:12,926 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 195 flow. Second operand 3 states and 227 transitions. [2022-09-16 11:40:12,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 80 transitions, 233 flow [2022-09-16 11:40:12,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 80 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:12,930 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 202 flow [2022-09-16 11:40:12,931 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2022-09-16 11:40:12,931 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, 8 predicate places. [2022-09-16 11:40:12,932 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 202 flow [2022-09-16 11:40:12,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2022-09-16 11:40:12,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:12,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:12,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:40:12,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:12,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:12,934 INFO L85 PathProgramCache]: Analyzing trace with hash -872578521, now seen corresponding path program 1 times [2022-09-16 11:40:12,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:12,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272436670] [2022-09-16 11:40:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:12,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:13,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:13,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272436670] [2022-09-16 11:40:13,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272436670] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:13,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:13,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:13,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063636372] [2022-09-16 11:40:13,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:13,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:40:13,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:13,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:40:13,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:40:13,051 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 82 [2022-09-16 11:40:13,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2022-09-16 11:40:13,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:13,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 82 [2022-09-16 11:40:13,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:13,136 INFO L130 PetriNetUnfolder]: 20/137 cut-off events. [2022-09-16 11:40:13,136 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-09-16 11:40:13,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 137 events. 20/137 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 375 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 195. Up to 22 conditions per place. [2022-09-16 11:40:13,137 INFO L137 encePairwiseOnDemand]: 76/82 looper letters, 13 selfloop transitions, 4 changer transitions 10/86 dead transitions. [2022-09-16 11:40:13,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 86 transitions, 286 flow [2022-09-16 11:40:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:40:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:40:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2022-09-16 11:40:13,139 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8658536585365854 [2022-09-16 11:40:13,139 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 355 transitions. [2022-09-16 11:40:13,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 355 transitions. [2022-09-16 11:40:13,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:13,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 355 transitions. [2022-09-16 11:40:13,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2022-09-16 11:40:13,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2022-09-16 11:40:13,142 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2022-09-16 11:40:13,142 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 202 flow. Second operand 5 states and 355 transitions. [2022-09-16 11:40:13,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 86 transitions, 286 flow [2022-09-16 11:40:13,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 86 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:40:13,147 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 182 flow [2022-09-16 11:40:13,148 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2022-09-16 11:40:13,150 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, 8 predicate places. [2022-09-16 11:40:13,150 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 182 flow [2022-09-16 11:40:13,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2022-09-16 11:40:13,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:13,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:13,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:40:13,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash 2106157320, now seen corresponding path program 1 times [2022-09-16 11:40:13,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:13,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554091380] [2022-09-16 11:40:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:13,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:13,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:13,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554091380] [2022-09-16 11:40:13,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554091380] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:13,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:13,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:13,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297445589] [2022-09-16 11:40:13,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:13,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:13,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:13,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:13,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:13,251 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 82 [2022-09-16 11:40:13,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 64.6) internal successors, (323), 5 states have internal predecessors, (323), 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) [2022-09-16 11:40:13,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:13,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 82 [2022-09-16 11:40:13,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:13,346 INFO L130 PetriNetUnfolder]: 15/118 cut-off events. [2022-09-16 11:40:13,346 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-16 11:40:13,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 118 events. 15/118 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 301 event pairs, 0 based on Foata normal form. 1/116 useless extension candidates. Maximal degree in co-relation 166. Up to 19 conditions per place. [2022-09-16 11:40:13,347 INFO L137 encePairwiseOnDemand]: 75/82 looper letters, 14 selfloop transitions, 7 changer transitions 4/78 dead transitions. [2022-09-16 11:40:13,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 78 transitions, 242 flow [2022-09-16 11:40:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 466 transitions. [2022-09-16 11:40:13,351 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8118466898954704 [2022-09-16 11:40:13,351 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 466 transitions. [2022-09-16 11:40:13,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 466 transitions. [2022-09-16 11:40:13,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:13,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 466 transitions. [2022-09-16 11:40:13,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 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) [2022-09-16 11:40:13,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 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) [2022-09-16 11:40:13,355 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 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) [2022-09-16 11:40:13,355 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 182 flow. Second operand 7 states and 466 transitions. [2022-09-16 11:40:13,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 78 transitions, 242 flow [2022-09-16 11:40:13,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 78 transitions, 228 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:13,358 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 176 flow [2022-09-16 11:40:13,358 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=176, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2022-09-16 11:40:13,359 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, 7 predicate places. [2022-09-16 11:40:13,359 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 176 flow [2022-09-16 11:40:13,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.6) internal successors, (323), 5 states have internal predecessors, (323), 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) [2022-09-16 11:40:13,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:13,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:13,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:40:13,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:13,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:13,361 INFO L85 PathProgramCache]: Analyzing trace with hash 866367690, now seen corresponding path program 1 times [2022-09-16 11:40:13,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:13,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337198112] [2022-09-16 11:40:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:13,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:13,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:13,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:13,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337198112] [2022-09-16 11:40:13,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337198112] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:13,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:13,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538947485] [2022-09-16 11:40:13,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:13,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:13,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:13,442 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 82 [2022-09-16 11:40:13,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 64.8) internal successors, (324), 5 states have internal predecessors, (324), 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) [2022-09-16 11:40:13,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:13,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 82 [2022-09-16 11:40:13,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:13,516 INFO L130 PetriNetUnfolder]: 15/112 cut-off events. [2022-09-16 11:40:13,516 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-09-16 11:40:13,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 112 events. 15/112 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 277 event pairs, 12 based on Foata normal form. 1/106 useless extension candidates. Maximal degree in co-relation 155. Up to 34 conditions per place. [2022-09-16 11:40:13,517 INFO L137 encePairwiseOnDemand]: 77/82 looper letters, 12 selfloop transitions, 2 changer transitions 9/73 dead transitions. [2022-09-16 11:40:13,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 220 flow [2022-09-16 11:40:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:40:13,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:40:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 336 transitions. [2022-09-16 11:40:13,519 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8195121951219512 [2022-09-16 11:40:13,519 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 336 transitions. [2022-09-16 11:40:13,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 336 transitions. [2022-09-16 11:40:13,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:13,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 336 transitions. [2022-09-16 11:40:13,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 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) [2022-09-16 11:40:13,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2022-09-16 11:40:13,523 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2022-09-16 11:40:13,523 INFO L175 Difference]: Start difference. First operand has 82 places, 70 transitions, 176 flow. Second operand 5 states and 336 transitions. [2022-09-16 11:40:13,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 220 flow [2022-09-16 11:40:13,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 73 transitions, 204 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-09-16 11:40:13,526 INFO L231 Difference]: Finished difference. Result has 78 places, 63 transitions, 144 flow [2022-09-16 11:40:13,526 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2022-09-16 11:40:13,527 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2022-09-16 11:40:13,527 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 144 flow [2022-09-16 11:40:13,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 5 states have internal predecessors, (324), 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) [2022-09-16 11:40:13,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:13,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:13,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:40:13,528 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:13,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:13,529 INFO L85 PathProgramCache]: Analyzing trace with hash 600544535, now seen corresponding path program 1 times [2022-09-16 11:40:13,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:13,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254284460] [2022-09-16 11:40:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:13,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:13,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:13,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254284460] [2022-09-16 11:40:13,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254284460] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:13,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:13,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:13,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491308088] [2022-09-16 11:40:13,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:13,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:13,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:13,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:13,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:13,588 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 82 [2022-09-16 11:40:13,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 63 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 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) [2022-09-16 11:40:13,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:13,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 82 [2022-09-16 11:40:13,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:13,631 INFO L130 PetriNetUnfolder]: 7/80 cut-off events. [2022-09-16 11:40:13,631 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-16 11:40:13,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 80 events. 7/80 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 0 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 78. Up to 9 conditions per place. [2022-09-16 11:40:13,633 INFO L137 encePairwiseOnDemand]: 77/82 looper letters, 9 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2022-09-16 11:40:13,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 66 transitions, 176 flow [2022-09-16 11:40:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:40:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:40:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 411 transitions. [2022-09-16 11:40:13,635 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8353658536585366 [2022-09-16 11:40:13,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 411 transitions. [2022-09-16 11:40:13,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 411 transitions. [2022-09-16 11:40:13,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:13,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 411 transitions. [2022-09-16 11:40:13,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 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) [2022-09-16 11:40:13,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2022-09-16 11:40:13,639 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2022-09-16 11:40:13,639 INFO L175 Difference]: Start difference. First operand has 78 places, 63 transitions, 144 flow. Second operand 6 states and 411 transitions. [2022-09-16 11:40:13,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 66 transitions, 176 flow [2022-09-16 11:40:13,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 66 transitions, 166 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-16 11:40:13,642 INFO L231 Difference]: Finished difference. Result has 70 places, 62 transitions, 138 flow [2022-09-16 11:40:13,642 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2022-09-16 11:40:13,645 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, -5 predicate places. [2022-09-16 11:40:13,645 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 138 flow [2022-09-16 11:40:13,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 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) [2022-09-16 11:40:13,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:13,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:13,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:40:13,646 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-09-16 11:40:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:13,646 INFO L85 PathProgramCache]: Analyzing trace with hash -599509940, now seen corresponding path program 1 times [2022-09-16 11:40:13,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:13,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676199739] [2022-09-16 11:40:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:13,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:13,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:13,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676199739] [2022-09-16 11:40:13,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676199739] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:13,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:13,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:13,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700019388] [2022-09-16 11:40:13,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:13,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:13,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:13,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:13,752 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 82 [2022-09-16 11:40:13,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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) [2022-09-16 11:40:13,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:13,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 82 [2022-09-16 11:40:13,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:13,789 INFO L130 PetriNetUnfolder]: 6/74 cut-off events. [2022-09-16 11:40:13,789 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-16 11:40:13,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 74 events. 6/74 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 69. Up to 9 conditions per place. [2022-09-16 11:40:13,789 INFO L137 encePairwiseOnDemand]: 77/82 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2022-09-16 11:40:13,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 64 transitions, 162 flow [2022-09-16 11:40:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:40:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:40:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 409 transitions. [2022-09-16 11:40:13,796 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8313008130081301 [2022-09-16 11:40:13,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 409 transitions. [2022-09-16 11:40:13,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 409 transitions. [2022-09-16 11:40:13,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:13,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 409 transitions. [2022-09-16 11:40:13,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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) [2022-09-16 11:40:13,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2022-09-16 11:40:13,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2022-09-16 11:40:13,801 INFO L175 Difference]: Start difference. First operand has 70 places, 62 transitions, 138 flow. Second operand 6 states and 409 transitions. [2022-09-16 11:40:13,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 64 transitions, 162 flow [2022-09-16 11:40:13,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 153 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-16 11:40:13,802 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2022-09-16 11:40:13,802 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2022-09-16 11:40:13,802 INFO L287 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2022-09-16 11:40:13,803 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2022-09-16 11:40:13,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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) [2022-09-16 11:40:13,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2022-09-16 11:40:13,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2022-09-16 11:40:13,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-09-16 11:40:13,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2022-09-16 11:40:13,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2022-09-16 11:40:13,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2022-09-16 11:40:13,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2022-09-16 11:40:13,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2022-09-16 11:40:13,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2022-09-16 11:40:13,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2022-09-16 11:40:13,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2022-09-16 11:40:13,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:40:13,812 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:13,817 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:40:13,818 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:40:13,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:40:13 BasicIcfg [2022-09-16 11:40:13,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:40:13,823 INFO L158 Benchmark]: Toolchain (without parser) took 2841.29ms. Allocated memory is still 199.2MB. Free memory was 144.9MB in the beginning and 72.6MB in the end (delta: 72.3MB). Peak memory consumption was 73.3MB. Max. memory is 8.0GB. [2022-09-16 11:40:13,823 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 199.2MB. Free memory was 162.7MB in the beginning and 162.6MB in the end (delta: 92.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:13,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.21ms. Allocated memory is still 199.2MB. Free memory was 144.7MB in the beginning and 167.7MB in the end (delta: -23.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:40:13,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.63ms. Allocated memory is still 199.2MB. Free memory was 167.7MB in the beginning and 165.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:13,824 INFO L158 Benchmark]: Boogie Preprocessor took 22.78ms. Allocated memory is still 199.2MB. Free memory was 165.6MB in the beginning and 164.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:40:13,825 INFO L158 Benchmark]: RCFGBuilder took 513.13ms. Allocated memory is still 199.2MB. Free memory was 164.4MB in the beginning and 151.3MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-16 11:40:13,825 INFO L158 Benchmark]: TraceAbstraction took 1817.63ms. Allocated memory is still 199.2MB. Free memory was 150.6MB in the beginning and 72.6MB in the end (delta: 77.9MB). Peak memory consumption was 79.5MB. Max. memory is 8.0GB. [2022-09-16 11:40:13,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 199.2MB. Free memory was 162.7MB in the beginning and 162.6MB in the end (delta: 92.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 432.21ms. Allocated memory is still 199.2MB. Free memory was 144.7MB in the beginning and 167.7MB in the end (delta: -23.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.63ms. Allocated memory is still 199.2MB. Free memory was 167.7MB in the beginning and 165.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.78ms. Allocated memory is still 199.2MB. Free memory was 165.6MB in the beginning and 164.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 513.13ms. Allocated memory is still 199.2MB. Free memory was 164.4MB in the beginning and 151.3MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1817.63ms. Allocated memory is still 199.2MB. Free memory was 150.6MB in the beginning and 72.6MB in the end (delta: 77.9MB). Peak memory consumption was 79.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 35 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=2, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 307 NumberOfCodeBlocks, 307 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:40:13,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...