/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_15-funarg_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:39:56,766 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 11:39:56,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:39:56,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:39:56,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:39:56,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:39:56,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:39:56,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:39:56,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:39:56,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:39:56,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:39:56,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:39:56,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:39:56,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:39:56,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:39:56,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:39:56,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:39:56,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:39:56,870 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 11:39:56,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:39:56,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:39:56,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:39:56,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:39:56,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:39:56,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:39:56,909 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:39:56,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:39:56,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:39:56,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:39:56,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:39:56,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:39:56,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:39:56,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:39:56,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:39:56,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:39:56,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:39:56,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:39:56,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:39:56,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:39:56,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:39:56,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:39:56,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:39:56,912 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:39:56,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:39:56,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:39:57,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:39:57,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:39:57,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:39:57,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:39:57,206 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:39:57,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_15-funarg_nr.i [2022-09-16 11:39:57,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93309bf10/3a7dc65930764103b6cd79726c519ae3/FLAGc2c75ca0a [2022-09-16 11:39:57,753 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:39:57,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_15-funarg_nr.i [2022-09-16 11:39:57,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93309bf10/3a7dc65930764103b6cd79726c519ae3/FLAGc2c75ca0a [2022-09-16 11:39:58,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93309bf10/3a7dc65930764103b6cd79726c519ae3 [2022-09-16 11:39:58,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:39:58,090 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:39:58,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:39:58,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:39:58,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:39:58,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746dec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58, skipping insertion in model container [2022-09-16 11:39:58,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:39:58,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:39:58,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:39:58,645 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:39:58,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:39:58,766 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:39:58,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58 WrapperNode [2022-09-16 11:39:58,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:39:58,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:39:58,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:39:58,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:39:58,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,837 INFO L138 Inliner]: procedures = 263, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2022-09-16 11:39:58,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:39:58,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:39:58,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:39:58,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:39:58,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:39:58,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:39:58,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:39:58,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:39:58,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (1/1) ... [2022-09-16 11:39:58,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:39:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:39:58,913 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 11:39:58,936 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 11:39:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:39:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:39:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:39:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:39:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:39:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:39:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:39:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:39:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:39:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:39:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:39:58,955 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 11:39:59,104 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:39:59,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:39:59,257 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:39:59,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:39:59,263 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:39:59,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:39:59 BoogieIcfgContainer [2022-09-16 11:39:59,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:39:59,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:39:59,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:39:59,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:39:59,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:39:58" (1/3) ... [2022-09-16 11:39:59,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6226eca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:39:59, skipping insertion in model container [2022-09-16 11:39:59,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:39:58" (2/3) ... [2022-09-16 11:39:59,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6226eca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:39:59, skipping insertion in model container [2022-09-16 11:39:59,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:39:59" (3/3) ... [2022-09-16 11:39:59,280 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_15-funarg_nr.i [2022-09-16 11:39:59,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:39:59,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:39:59,297 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:39:59,351 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:39:59,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 174 flow [2022-09-16 11:39:59,416 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-09-16 11:39:59,416 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:59,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-09-16 11:39:59,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 174 flow [2022-09-16 11:39:59,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 74 transitions, 151 flow [2022-09-16 11:39:59,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:39:59,445 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;@58ba260c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:39:59,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-16 11:39:59,458 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-09-16 11:39:59,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:39:59,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:59,460 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 11:39:59,461 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 11:39:59,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash -129364095, now seen corresponding path program 1 times [2022-09-16 11:39:59,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:59,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906779787] [2022-09-16 11:39:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:59,770 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 11:39:59,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:59,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906779787] [2022-09-16 11:39:59,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906779787] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:59,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:59,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:59,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923305880] [2022-09-16 11:39:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:59,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:59,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:59,809 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 83 [2022-09-16 11:39:59,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 11:39:59,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:59,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 83 [2022-09-16 11:39:59,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:59,852 INFO L130 PetriNetUnfolder]: 3/92 cut-off events. [2022-09-16 11:39:59,852 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:59,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 92 events. 3/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 2 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 63. Up to 9 conditions per place. [2022-09-16 11:39:59,855 INFO L137 encePairwiseOnDemand]: 79/83 looper letters, 5 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2022-09-16 11:39:59,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 73 transitions, 163 flow [2022-09-16 11:39:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:59,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2022-09-16 11:39:59,867 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.927710843373494 [2022-09-16 11:39:59,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2022-09-16 11:39:59,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2022-09-16 11:39:59,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:59,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2022-09-16 11:39:59,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 11:39:59,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 11:39:59,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 11:39:59,889 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 151 flow. Second operand 3 states and 231 transitions. [2022-09-16 11:39:59,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 73 transitions, 163 flow [2022-09-16 11:39:59,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 73 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:59,902 INFO L231 Difference]: Finished difference. Result has 77 places, 72 transitions, 150 flow [2022-09-16 11:39:59,904 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=77, PETRI_TRANSITIONS=72} [2022-09-16 11:39:59,908 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, -1 predicate places. [2022-09-16 11:39:59,908 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 72 transitions, 150 flow [2022-09-16 11:39:59,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 11:39:59,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:59,909 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 11:39:59,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:39:59,909 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 11:39:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:59,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1705633036, now seen corresponding path program 1 times [2022-09-16 11:39:59,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:59,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327558815] [2022-09-16 11:39:59,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:59,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:00,053 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 11:40:00,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:00,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327558815] [2022-09-16 11:40:00,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327558815] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:00,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:00,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:00,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134970116] [2022-09-16 11:40:00,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:00,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:00,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:00,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:00,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:00,058 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 83 [2022-09-16 11:40:00,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 72 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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 11:40:00,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:00,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 83 [2022-09-16 11:40:00,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:00,207 INFO L130 PetriNetUnfolder]: 17/152 cut-off events. [2022-09-16 11:40:00,207 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-09-16 11:40:00,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 152 events. 17/152 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 394 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 172. Up to 20 conditions per place. [2022-09-16 11:40:00,209 INFO L137 encePairwiseOnDemand]: 77/83 looper letters, 9 selfloop transitions, 2 changer transitions 25/89 dead transitions. [2022-09-16 11:40:00,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 89 transitions, 248 flow [2022-09-16 11:40:00,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 503 transitions. [2022-09-16 11:40:00,213 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8657487091222031 [2022-09-16 11:40:00,213 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 503 transitions. [2022-09-16 11:40:00,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 503 transitions. [2022-09-16 11:40:00,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:00,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 503 transitions. [2022-09-16 11:40:00,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 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 11:40:00,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 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 11:40:00,218 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 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 11:40:00,218 INFO L175 Difference]: Start difference. First operand has 77 places, 72 transitions, 150 flow. Second operand 7 states and 503 transitions. [2022-09-16 11:40:00,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 89 transitions, 248 flow [2022-09-16 11:40:00,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 89 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:40:00,221 INFO L231 Difference]: Finished difference. Result has 86 places, 64 transitions, 150 flow [2022-09-16 11:40:00,221 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=150, PETRI_PLACES=86, PETRI_TRANSITIONS=64} [2022-09-16 11:40:00,222 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2022-09-16 11:40:00,222 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 64 transitions, 150 flow [2022-09-16 11:40:00,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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 11:40:00,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:00,223 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, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:00,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:40:00,223 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 11:40:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:00,225 INFO L85 PathProgramCache]: Analyzing trace with hash -228834072, now seen corresponding path program 1 times [2022-09-16 11:40:00,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:00,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937965515] [2022-09-16 11:40:00,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:00,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:00,290 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 11:40:00,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:00,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937965515] [2022-09-16 11:40:00,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937965515] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:00,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:00,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:00,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150978517] [2022-09-16 11:40:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:00,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:40:00,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:00,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:40:00,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:40:00,294 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 83 [2022-09-16 11:40:00,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 64 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 11:40:00,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:00,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 83 [2022-09-16 11:40:00,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:00,343 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-09-16 11:40:00,343 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-16 11:40:00,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 79 events. 1/79 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 1 based on Foata normal form. 4/83 useless extension candidates. Maximal degree in co-relation 104. Up to 12 conditions per place. [2022-09-16 11:40:00,344 INFO L137 encePairwiseOnDemand]: 78/83 looper letters, 7 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2022-09-16 11:40:00,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 64 transitions, 174 flow [2022-09-16 11:40:00,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:40:00,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:40:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2022-09-16 11:40:00,351 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.891566265060241 [2022-09-16 11:40:00,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 222 transitions. [2022-09-16 11:40:00,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 222 transitions. [2022-09-16 11:40:00,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:00,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 222 transitions. [2022-09-16 11:40:00,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 11:40:00,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 11:40:00,353 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 11:40:00,354 INFO L175 Difference]: Start difference. First operand has 86 places, 64 transitions, 150 flow. Second operand 3 states and 222 transitions. [2022-09-16 11:40:00,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 64 transitions, 174 flow [2022-09-16 11:40:00,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 158 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:00,356 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 144 flow [2022-09-16 11:40:00,356 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2022-09-16 11:40:00,357 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, -8 predicate places. [2022-09-16 11:40:00,357 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 144 flow [2022-09-16 11:40:00,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 11:40:00,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:00,358 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, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:00,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:40:00,358 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 11:40:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash 434766385, now seen corresponding path program 1 times [2022-09-16 11:40:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:00,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925356571] [2022-09-16 11:40:00,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:00,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:00,507 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 11:40:00,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:00,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925356571] [2022-09-16 11:40:00,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925356571] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:00,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:00,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:00,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970164644] [2022-09-16 11:40:00,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:00,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:00,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:00,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:00,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:00,510 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 83 [2022-09-16 11:40:00,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 144 flow. Second operand has 6 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 11:40:00,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:00,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 83 [2022-09-16 11:40:00,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:00,571 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-09-16 11:40:00,571 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 11:40:00,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 78 events. 1/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 1 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2022-09-16 11:40:00,572 INFO L137 encePairwiseOnDemand]: 78/83 looper letters, 6 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2022-09-16 11:40:00,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 63 transitions, 162 flow [2022-09-16 11:40:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:40:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:40:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2022-09-16 11:40:00,575 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8293172690763052 [2022-09-16 11:40:00,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2022-09-16 11:40:00,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2022-09-16 11:40:00,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:00,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2022-09-16 11:40:00,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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 11:40:00,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 11:40:00,578 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 11:40:00,579 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 144 flow. Second operand 6 states and 413 transitions. [2022-09-16 11:40:00,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 63 transitions, 162 flow [2022-09-16 11:40:00,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 63 transitions, 157 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:00,581 INFO L231 Difference]: Finished difference. Result has 73 places, 63 transitions, 145 flow [2022-09-16 11:40:00,581 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=145, PETRI_PLACES=73, PETRI_TRANSITIONS=63} [2022-09-16 11:40:00,582 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, -5 predicate places. [2022-09-16 11:40:00,582 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 145 flow [2022-09-16 11:40:00,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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 11:40:00,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:00,582 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:00,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:40:00,583 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:00,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:00,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1952099911, now seen corresponding path program 1 times [2022-09-16 11:40:00,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:00,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227506510] [2022-09-16 11:40:00,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:00,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:00,694 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 11:40:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:00,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227506510] [2022-09-16 11:40:00,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227506510] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:00,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:00,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:00,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688091760] [2022-09-16 11:40:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:00,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:00,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:00,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:00,697 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 83 [2022-09-16 11:40:00,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 145 flow. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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 11:40:00,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:00,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 83 [2022-09-16 11:40:00,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:00,769 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2022-09-16 11:40:00,769 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-16 11:40:00,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 77 events. 1/77 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 1 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 59. Up to 6 conditions per place. [2022-09-16 11:40:00,770 INFO L137 encePairwiseOnDemand]: 78/83 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2022-09-16 11:40:00,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 62 transitions, 161 flow [2022-09-16 11:40:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:40:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:40:00,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2022-09-16 11:40:00,772 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8273092369477911 [2022-09-16 11:40:00,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 412 transitions. [2022-09-16 11:40:00,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 412 transitions. [2022-09-16 11:40:00,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:00,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 412 transitions. [2022-09-16 11:40:00,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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 11:40:00,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 11:40:00,776 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 11:40:00,776 INFO L175 Difference]: Start difference. First operand has 73 places, 63 transitions, 145 flow. Second operand 6 states and 412 transitions. [2022-09-16 11:40:00,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 62 transitions, 161 flow [2022-09-16 11:40:00,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 62 transitions, 152 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-09-16 11:40:00,777 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2022-09-16 11:40:00,778 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2022-09-16 11:40:00,778 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, -5 predicate places. [2022-09-16 11:40:00,778 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2022-09-16 11:40:00,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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 11:40:00,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-09-16 11:40:00,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-09-16 11:40:00,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-09-16 11:40:00,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-09-16 11:40:00,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-09-16 11:40:00,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-09-16 11:40:00,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-09-16 11:40:00,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:40:00,784 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:40:00,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:40:00,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:40:00,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:40:00 BasicIcfg [2022-09-16 11:40:00,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:40:00,803 INFO L158 Benchmark]: Toolchain (without parser) took 2711.78ms. Allocated memory was 188.7MB in the beginning and 253.8MB in the end (delta: 65.0MB). Free memory was 155.2MB in the beginning and 218.6MB in the end (delta: -63.4MB). Peak memory consumption was 1.2MB. Max. memory is 8.0GB. [2022-09-16 11:40:00,804 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:00,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.50ms. Allocated memory was 188.7MB in the beginning and 253.8MB in the end (delta: 65.0MB). Free memory was 155.2MB in the beginning and 206.0MB in the end (delta: -50.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-09-16 11:40:00,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.89ms. Allocated memory is still 253.8MB. Free memory was 206.0MB in the beginning and 203.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:00,807 INFO L158 Benchmark]: Boogie Preprocessor took 36.14ms. Allocated memory is still 253.8MB. Free memory was 203.8MB in the beginning and 202.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:40:00,814 INFO L158 Benchmark]: RCFGBuilder took 390.69ms. Allocated memory is still 253.8MB. Free memory was 202.3MB in the beginning and 188.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-16 11:40:00,814 INFO L158 Benchmark]: TraceAbstraction took 1534.52ms. Allocated memory is still 253.8MB. Free memory was 188.2MB in the beginning and 218.6MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:00,816 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 188.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 675.50ms. Allocated memory was 188.7MB in the beginning and 253.8MB in the end (delta: 65.0MB). Free memory was 155.2MB in the beginning and 206.0MB in the end (delta: -50.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.89ms. Allocated memory is still 253.8MB. Free memory was 206.0MB in the beginning and 203.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.14ms. Allocated memory is still 253.8MB. Free memory was 203.8MB in the beginning and 202.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 390.69ms. Allocated memory is still 253.8MB. Free memory was 202.3MB in the beginning and 188.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1534.52ms. Allocated memory is still 253.8MB. Free memory was 188.2MB in the beginning and 218.6MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 97 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 19 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 11:40:00,851 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...