/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_05-lockfuns.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:39:32,420 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 11:39:32,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:39:32,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:39:32,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:39:32,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:39:32,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:39:32,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:39:32,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:39:32,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:39:32,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:39:32,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:39:32,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:39:32,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:39:32,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:39:32,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:39:32,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:39:32,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:39:32,499 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 11:39:32,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:39:32,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:39:32,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:39:32,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:39:32,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:39:32,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:39:32,527 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:39:32,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:39:32,527 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:39:32,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:39:32,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:39:32,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:39:32,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:39:32,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:39:32,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:39:32,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:39:32,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:39:32,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:39:32,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:39:32,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:39:32,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:39:32,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:39:32,531 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:39:32,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:39:32,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:39:32,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:39:32,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:39:32,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:39:32,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:39:32,795 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:39:32,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i [2022-09-16 11:39:32,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e21bd14/4d503d9bb94b4561b69e89dacaa0a25e/FLAGb05c589c4 [2022-09-16 11:39:33,395 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:39:33,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i [2022-09-16 11:39:33,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e21bd14/4d503d9bb94b4561b69e89dacaa0a25e/FLAGb05c589c4 [2022-09-16 11:39:33,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e21bd14/4d503d9bb94b4561b69e89dacaa0a25e [2022-09-16 11:39:33,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:39:33,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:39:33,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:39:33,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:39:33,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:39:33,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:39:33" (1/1) ... [2022-09-16 11:39:33,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72243da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:33, skipping insertion in model container [2022-09-16 11:39:33,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:39:33" (1/1) ... [2022-09-16 11:39:33,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:39:33,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:39:34,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:39:34,375 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:39:34,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:39:34,475 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:39:34,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34 WrapperNode [2022-09-16 11:39:34,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:39:34,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:39:34,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:39:34,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:39:34,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,540 INFO L138 Inliner]: procedures = 264, calls = 19, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 52 [2022-09-16 11:39:34,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:39:34,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:39:34,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:39:34,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:39:34,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:39:34,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:39:34,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:39:34,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:39:34,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (1/1) ... [2022-09-16 11:39:34,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:39:34,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:39:34,611 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 11:39:34,619 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 11:39:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:39:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:39:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:39:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:39:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:39:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:39:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:39:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:39:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:39:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:39:34,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:39:34,646 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 11:39:34,812 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:39:34,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:39:34,999 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:39:35,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:39:35,005 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:39:35,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:39:35 BoogieIcfgContainer [2022-09-16 11:39:35,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:39:35,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:39:35,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:39:35,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:39:35,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:39:33" (1/3) ... [2022-09-16 11:39:35,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71091802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:39:35, skipping insertion in model container [2022-09-16 11:39:35,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:34" (2/3) ... [2022-09-16 11:39:35,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71091802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:39:35, skipping insertion in model container [2022-09-16 11:39:35,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:39:35" (3/3) ... [2022-09-16 11:39:35,014 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_05-lockfuns.i [2022-09-16 11:39:35,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:39:35,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:39:35,034 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:39:35,106 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:39:35,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 66 transitions, 140 flow [2022-09-16 11:39:35,203 INFO L130 PetriNetUnfolder]: 0/65 cut-off events. [2022-09-16 11:39:35,203 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:35,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 65 events. 0/65 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-09-16 11:39:35,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 66 transitions, 140 flow [2022-09-16 11:39:35,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 117 flow [2022-09-16 11:39:35,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:39:35,235 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;@b6779b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:39:35,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-16 11:39:35,254 INFO L130 PetriNetUnfolder]: 0/36 cut-off events. [2022-09-16 11:39:35,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:39:35,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:35,255 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] [2022-09-16 11:39:35,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:35,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1671345235, now seen corresponding path program 1 times [2022-09-16 11:39:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:35,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078782846] [2022-09-16 11:39:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:35,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:35,536 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 11:39:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:35,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078782846] [2022-09-16 11:39:35,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078782846] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:35,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:35,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:39:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875419732] [2022-09-16 11:39:35,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:35,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:39:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:35,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:39:35,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:39:35,592 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 66 [2022-09-16 11:39:35,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 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 11:39:35,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:35,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 66 [2022-09-16 11:39:35,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:35,708 INFO L130 PetriNetUnfolder]: 10/111 cut-off events. [2022-09-16 11:39:35,708 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:35,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 111 events. 10/111 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 339 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 123. Up to 14 conditions per place. [2022-09-16 11:39:35,712 INFO L137 encePairwiseOnDemand]: 59/66 looper letters, 11 selfloop transitions, 5 changer transitions 9/71 dead transitions. [2022-09-16 11:39:35,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 71 transitions, 195 flow [2022-09-16 11:39:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:39:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:39:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 299 transitions. [2022-09-16 11:39:35,733 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.906060606060606 [2022-09-16 11:39:35,734 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 299 transitions. [2022-09-16 11:39:35,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 299 transitions. [2022-09-16 11:39:35,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:35,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 299 transitions. [2022-09-16 11:39:35,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 11:39:35,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 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 11:39:35,756 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 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 11:39:35,758 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 117 flow. Second operand 5 states and 299 transitions. [2022-09-16 11:39:35,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 71 transitions, 195 flow [2022-09-16 11:39:35,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 71 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:35,772 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 145 flow [2022-09-16 11:39:35,774 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=145, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2022-09-16 11:39:35,778 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2022-09-16 11:39:35,778 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 145 flow [2022-09-16 11:39:35,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 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 11:39:35,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:35,779 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] [2022-09-16 11:39:35,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:39:35,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:35,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:35,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2146210619, now seen corresponding path program 1 times [2022-09-16 11:39:35,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:35,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203239547] [2022-09-16 11:39:35,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:35,894 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 11:39:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:35,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203239547] [2022-09-16 11:39:35,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203239547] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:35,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:35,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:39:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537892473] [2022-09-16 11:39:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:35,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:39:35,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:39:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:39:35,903 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 66 [2022-09-16 11:39:35,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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 11:39:35,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:35,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 66 [2022-09-16 11:39:35,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:35,986 INFO L130 PetriNetUnfolder]: 6/98 cut-off events. [2022-09-16 11:39:35,986 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-09-16 11:39:35,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 98 events. 6/98 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 259 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 135. Up to 10 conditions per place. [2022-09-16 11:39:35,987 INFO L137 encePairwiseOnDemand]: 59/66 looper letters, 11 selfloop transitions, 5 changer transitions 5/66 dead transitions. [2022-09-16 11:39:35,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 213 flow [2022-09-16 11:39:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:39:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:39:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 290 transitions. [2022-09-16 11:39:35,989 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2022-09-16 11:39:35,989 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 290 transitions. [2022-09-16 11:39:35,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 290 transitions. [2022-09-16 11:39:35,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:35,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 290 transitions. [2022-09-16 11:39:35,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 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 11:39:35,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 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 11:39:35,993 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 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 11:39:35,993 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 145 flow. Second operand 5 states and 290 transitions. [2022-09-16 11:39:35,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 213 flow [2022-09-16 11:39:35,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 200 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-09-16 11:39:35,996 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 163 flow [2022-09-16 11:39:35,996 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2022-09-16 11:39:35,997 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2022-09-16 11:39:35,997 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 163 flow [2022-09-16 11:39:35,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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 11:39:35,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:35,997 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] [2022-09-16 11:39:35,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:39:35,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1762603061, now seen corresponding path program 1 times [2022-09-16 11:39:35,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:35,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711824428] [2022-09-16 11:39:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:36,109 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 11:39:36,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:36,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711824428] [2022-09-16 11:39:36,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711824428] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:36,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:36,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:39:36,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076594249] [2022-09-16 11:39:36,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:36,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:36,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:36,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:36,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:36,115 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 66 [2022-09-16 11:39:36,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 11:39:36,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:36,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 66 [2022-09-16 11:39:36,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:36,156 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-09-16 11:39:36,156 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:39:36,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 69 events. 0/69 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 2/71 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2022-09-16 11:39:36,158 INFO L137 encePairwiseOnDemand]: 62/66 looper letters, 7 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2022-09-16 11:39:36,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 59 transitions, 185 flow [2022-09-16 11:39:36,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:36,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:36,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2022-09-16 11:39:36,160 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8838383838383839 [2022-09-16 11:39:36,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2022-09-16 11:39:36,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2022-09-16 11:39:36,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:36,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2022-09-16 11:39:36,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 11:39:36,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:39:36,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:39:36,163 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 163 flow. Second operand 3 states and 175 transitions. [2022-09-16 11:39:36,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 59 transitions, 185 flow [2022-09-16 11:39:36,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 59 transitions, 174 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-09-16 11:39:36,168 INFO L231 Difference]: Finished difference. Result has 70 places, 59 transitions, 160 flow [2022-09-16 11:39:36,168 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2022-09-16 11:39:36,169 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, 9 predicate places. [2022-09-16 11:39:36,169 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 160 flow [2022-09-16 11:39:36,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 11:39:36,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:36,170 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] [2022-09-16 11:39:36,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:39:36,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1548028130, now seen corresponding path program 1 times [2022-09-16 11:39:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:36,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296951237] [2022-09-16 11:39:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:36,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:36,285 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 11:39:36,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:36,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296951237] [2022-09-16 11:39:36,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296951237] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:36,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:36,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:39:36,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579896514] [2022-09-16 11:39:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:36,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:39:36,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:39:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:39:36,289 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 66 [2022-09-16 11:39:36,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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 11:39:36,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:36,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 66 [2022-09-16 11:39:36,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:36,368 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-09-16 11:39:36,368 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-09-16 11:39:36,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 68 events. 0/68 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 0 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-09-16 11:39:36,369 INFO L137 encePairwiseOnDemand]: 58/66 looper letters, 12 selfloop transitions, 8 changer transitions 2/62 dead transitions. [2022-09-16 11:39:36,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 62 transitions, 208 flow [2022-09-16 11:39:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:39:36,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:39:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 455 transitions. [2022-09-16 11:39:36,372 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.765993265993266 [2022-09-16 11:39:36,372 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 455 transitions. [2022-09-16 11:39:36,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 455 transitions. [2022-09-16 11:39:36,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:36,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 455 transitions. [2022-09-16 11:39:36,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.55555555555556) internal successors, (455), 9 states have internal predecessors, (455), 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 11:39:36,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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 11:39:36,378 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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 11:39:36,378 INFO L175 Difference]: Start difference. First operand has 70 places, 59 transitions, 160 flow. Second operand 9 states and 455 transitions. [2022-09-16 11:39:36,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 62 transitions, 208 flow [2022-09-16 11:39:36,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 62 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:36,383 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 168 flow [2022-09-16 11:39:36,383 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=168, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2022-09-16 11:39:36,385 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, 15 predicate places. [2022-09-16 11:39:36,385 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 168 flow [2022-09-16 11:39:36,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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 11:39:36,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:36,385 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] [2022-09-16 11:39:36,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:39:36,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:36,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:36,390 INFO L85 PathProgramCache]: Analyzing trace with hash -711891144, now seen corresponding path program 1 times [2022-09-16 11:39:36,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:36,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5154217] [2022-09-16 11:39:36,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:36,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:36,474 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 11:39:36,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:36,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5154217] [2022-09-16 11:39:36,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5154217] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:36,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:36,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:39:36,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986678624] [2022-09-16 11:39:36,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:36,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:39:36,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:36,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:39:36,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:39:36,477 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 66 [2022-09-16 11:39:36,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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 11:39:36,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:36,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 66 [2022-09-16 11:39:36,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:36,555 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-09-16 11:39:36,556 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-09-16 11:39:36,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 67 events. 0/67 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-09-16 11:39:36,556 INFO L137 encePairwiseOnDemand]: 58/66 looper letters, 11 selfloop transitions, 8 changer transitions 2/61 dead transitions. [2022-09-16 11:39:36,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 61 transitions, 214 flow [2022-09-16 11:39:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:39:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:39:36,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 454 transitions. [2022-09-16 11:39:36,562 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7643097643097643 [2022-09-16 11:39:36,562 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 454 transitions. [2022-09-16 11:39:36,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 454 transitions. [2022-09-16 11:39:36,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:36,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 454 transitions. [2022-09-16 11:39:36,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.44444444444444) internal successors, (454), 9 states have internal predecessors, (454), 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 11:39:36,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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 11:39:36,565 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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 11:39:36,566 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 168 flow. Second operand 9 states and 454 transitions. [2022-09-16 11:39:36,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 61 transitions, 214 flow [2022-09-16 11:39:36,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 61 transitions, 193 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-09-16 11:39:36,568 INFO L231 Difference]: Finished difference. Result has 75 places, 57 transitions, 159 flow [2022-09-16 11:39:36,569 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=75, PETRI_TRANSITIONS=57} [2022-09-16 11:39:36,569 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2022-09-16 11:39:36,569 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 57 transitions, 159 flow [2022-09-16 11:39:36,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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 11:39:36,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:36,570 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 11:39:36,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:39:36,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash -744231629, now seen corresponding path program 1 times [2022-09-16 11:39:36,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:36,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517620551] [2022-09-16 11:39:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:36,630 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 11:39:36,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:36,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517620551] [2022-09-16 11:39:36,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517620551] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:36,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:36,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:39:36,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643926599] [2022-09-16 11:39:36,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:36,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:39:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:39:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:39:36,634 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 66 [2022-09-16 11:39:36,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 57 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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 11:39:36,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:36,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 66 [2022-09-16 11:39:36,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:36,685 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-09-16 11:39:36,686 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-09-16 11:39:36,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 66 events. 0/66 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-09-16 11:39:36,686 INFO L137 encePairwiseOnDemand]: 59/66 looper letters, 9 selfloop transitions, 2 changer transitions 14/60 dead transitions. [2022-09-16 11:39:36,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 60 transitions, 203 flow [2022-09-16 11:39:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:39:36,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:39:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 357 transitions. [2022-09-16 11:39:36,688 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2022-09-16 11:39:36,688 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 357 transitions. [2022-09-16 11:39:36,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 357 transitions. [2022-09-16 11:39:36,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:36,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 357 transitions. [2022-09-16 11:39:36,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 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 11:39:36,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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 11:39:36,691 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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 11:39:36,691 INFO L175 Difference]: Start difference. First operand has 75 places, 57 transitions, 159 flow. Second operand 7 states and 357 transitions. [2022-09-16 11:39:36,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 60 transitions, 203 flow [2022-09-16 11:39:36,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 60 transitions, 183 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-09-16 11:39:36,693 INFO L231 Difference]: Finished difference. Result has 72 places, 46 transitions, 110 flow [2022-09-16 11:39:36,694 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=110, PETRI_PLACES=72, PETRI_TRANSITIONS=46} [2022-09-16 11:39:36,694 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, 11 predicate places. [2022-09-16 11:39:36,694 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 46 transitions, 110 flow [2022-09-16 11:39:36,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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 11:39:36,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:36,695 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 11:39:36,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:39:36,695 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:39:36,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash -593788808, now seen corresponding path program 1 times [2022-09-16 11:39:36,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:36,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322165541] [2022-09-16 11:39:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:36,796 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 11:39:36,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:36,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322165541] [2022-09-16 11:39:36,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322165541] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:36,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:36,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:39:36,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052414511] [2022-09-16 11:39:36,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:36,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:39:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:39:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:39:36,799 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 66 [2022-09-16 11:39:36,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 46 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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 11:39:36,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:36,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 66 [2022-09-16 11:39:36,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:36,842 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-09-16 11:39:36,842 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-16 11:39:36,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 48 events. 0/48 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-09-16 11:39:36,844 INFO L137 encePairwiseOnDemand]: 60/66 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2022-09-16 11:39:36,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 45 transitions, 126 flow [2022-09-16 11:39:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:39:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:39:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 347 transitions. [2022-09-16 11:39:36,846 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7510822510822511 [2022-09-16 11:39:36,846 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 347 transitions. [2022-09-16 11:39:36,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 347 transitions. [2022-09-16 11:39:36,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:36,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 347 transitions. [2022-09-16 11:39:36,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 49.57142857142857) internal successors, (347), 7 states have internal predecessors, (347), 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 11:39:36,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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 11:39:36,849 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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 11:39:36,849 INFO L175 Difference]: Start difference. First operand has 72 places, 46 transitions, 110 flow. Second operand 7 states and 347 transitions. [2022-09-16 11:39:36,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 45 transitions, 126 flow [2022-09-16 11:39:36,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 45 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:39:36,851 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2022-09-16 11:39:36,851 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2022-09-16 11:39:36,852 INFO L287 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2022-09-16 11:39:36,852 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2022-09-16 11:39:36,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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 11:39:36,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-09-16 11:39:36,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-09-16 11:39:36,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-09-16 11:39:36,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-09-16 11:39:36,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-09-16 11:39:36,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-09-16 11:39:36,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-09-16 11:39:36,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:39:36,857 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:39:36,865 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:39:36,866 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:39:36,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:39:36 BasicIcfg [2022-09-16 11:39:36,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:39:36,876 INFO L158 Benchmark]: Toolchain (without parser) took 3006.69ms. Allocated memory was 170.9MB in the beginning and 205.5MB in the end (delta: 34.6MB). Free memory was 116.1MB in the beginning and 174.3MB in the end (delta: -58.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:39:36,879 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 170.9MB. Free memory was 134.6MB in the beginning and 134.5MB in the end (delta: 78.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:39:36,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.49ms. Allocated memory is still 170.9MB. Free memory was 115.9MB in the beginning and 131.6MB in the end (delta: -15.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-16 11:39:36,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.90ms. Allocated memory is still 170.9MB. Free memory was 131.6MB in the beginning and 129.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:39:36,881 INFO L158 Benchmark]: Boogie Preprocessor took 30.13ms. Allocated memory is still 170.9MB. Free memory was 129.3MB in the beginning and 128.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:39:36,882 INFO L158 Benchmark]: RCFGBuilder took 434.23ms. Allocated memory is still 170.9MB. Free memory was 128.0MB in the beginning and 116.2MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-16 11:39:36,883 INFO L158 Benchmark]: TraceAbstraction took 1863.91ms. Allocated memory was 170.9MB in the beginning and 205.5MB in the end (delta: 34.6MB). Free memory was 115.7MB in the beginning and 174.3MB in the end (delta: -58.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:39:36,885 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 170.9MB. Free memory was 134.6MB in the beginning and 134.5MB in the end (delta: 78.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 606.49ms. Allocated memory is still 170.9MB. Free memory was 115.9MB in the beginning and 131.6MB in the end (delta: -15.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.90ms. Allocated memory is still 170.9MB. Free memory was 131.6MB in the beginning and 129.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.13ms. Allocated memory is still 170.9MB. Free memory was 129.3MB in the beginning and 128.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 434.23ms. Allocated memory is still 170.9MB. Free memory was 128.0MB in the beginning and 116.2MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1863.91ms. Allocated memory was 170.9MB in the beginning and 205.5MB in the end (delta: 34.6MB). Free memory was 115.7MB in the beginning and 174.3MB in the end (delta: -58.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 935]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 935]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 927]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 927]: 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, 87 locations, 7 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: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 43 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=4, InterpolantAutomatonStates: 45, 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, 273 NumberOfCodeBlocks, 273 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:39:36,917 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...