/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/05-lval_ls_12-fldsense_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:40:18,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:40:18,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:40:18,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:40:18,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:40:18,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:40:18,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:40:18,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:40:18,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:40:18,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:40:18,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:40:18,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:40:18,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:40:18,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:40:18,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:40:18,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:40:18,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:40:18,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:40:18,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:40:18,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:40:18,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:40:18,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:40:18,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:40:18,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:40:18,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:40:18,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:40:18,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:40:18,420 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:40:18,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:40:18,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:40:18,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:40:18,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:40:18,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:40:18,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:40:18,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:40:18,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:40:18,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:18,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:40:18,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:40:18,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:40:18,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:40:18,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:40:18,423 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:40:18,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:40:18,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:40:18,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:40:18,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:40:18,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:40:18,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:40:18,652 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:40:18,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_12-fldsense_nr.i [2022-09-16 11:40:18,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdea6c04d/42a35c78de174996aa67a2d401dea7fd/FLAG2c7fba684 [2022-09-16 11:40:19,142 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:40:19,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_12-fldsense_nr.i [2022-09-16 11:40:19,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdea6c04d/42a35c78de174996aa67a2d401dea7fd/FLAG2c7fba684 [2022-09-16 11:40:19,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdea6c04d/42a35c78de174996aa67a2d401dea7fd [2022-09-16 11:40:19,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:40:19,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:40:19,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:19,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:40:19,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:40:19,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2089a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19, skipping insertion in model container [2022-09-16 11:40:19,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:40:19,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:40:19,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:19,796 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:40:19,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:19,886 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:40:19,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19 WrapperNode [2022-09-16 11:40:19,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:19,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:19,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:40:19,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:40:19,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,935 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-09-16 11:40:19,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:19,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:40:19,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:40:19,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:40:19,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:40:19,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:40:19,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:40:19,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:40:19,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (1/1) ... [2022-09-16 11:40:19,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:19,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:40:20,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:40:20,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:40:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:40:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:40:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:40:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:40:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:40:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:40:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:40:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:40:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:40:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:40:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:40:20,057 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:40:20,175 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:40:20,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:40:20,330 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:40:20,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:40:20,335 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:40:20,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:20 BoogieIcfgContainer [2022-09-16 11:40:20,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:40:20,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:40:20,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:40:20,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:40:20,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:40:19" (1/3) ... [2022-09-16 11:40:20,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4146ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:20, skipping insertion in model container [2022-09-16 11:40:20,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:19" (2/3) ... [2022-09-16 11:40:20,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4146ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:20, skipping insertion in model container [2022-09-16 11:40:20,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:20" (3/3) ... [2022-09-16 11:40:20,343 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_12-fldsense_nr.i [2022-09-16 11:40:20,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:40:20,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:40:20,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:40:20,392 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:40:20,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 79 transitions, 163 flow [2022-09-16 11:40:20,444 INFO L130 PetriNetUnfolder]: 0/78 cut-off events. [2022-09-16 11:40:20,444 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:20,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 0/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-09-16 11:40:20,446 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 79 transitions, 163 flow [2022-09-16 11:40:20,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 78 transitions, 159 flow [2022-09-16 11:40:20,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:40:20,462 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;@4b720169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:40:20,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-09-16 11:40:20,486 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-09-16 11:40:20,486 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:20,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:20,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:20,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:20,492 INFO L85 PathProgramCache]: Analyzing trace with hash -941837897, now seen corresponding path program 1 times [2022-09-16 11:40:20,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:20,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140734274] [2022-09-16 11:40:20,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:20,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:20,824 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 11:40:20,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:20,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140734274] [2022-09-16 11:40:20,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140734274] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:20,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:20,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-16 11:40:20,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990317946] [2022-09-16 11:40:20,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:20,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:40:20,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:20,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:40:20,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:40:20,857 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 79 [2022-09-16 11:40:20,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 159 flow. Second operand has 9 states, 9 states have (on average 48.333333333333336) internal successors, (435), 9 states have internal predecessors, (435), 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 11:40:20,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:20,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 79 [2022-09-16 11:40:20,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,154 INFO L130 PetriNetUnfolder]: 74/359 cut-off events. [2022-09-16 11:40:21,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:21,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 359 events. 74/359 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1806 event pairs, 32 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 497. Up to 96 conditions per place. [2022-09-16 11:40:21,159 INFO L137 encePairwiseOnDemand]: 67/79 looper letters, 44 selfloop transitions, 13 changer transitions 9/111 dead transitions. [2022-09-16 11:40:21,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 111 transitions, 357 flow [2022-09-16 11:40:21,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:40:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-16 11:40:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 576 transitions. [2022-09-16 11:40:21,180 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6628308400460299 [2022-09-16 11:40:21,181 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 576 transitions. [2022-09-16 11:40:21,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 576 transitions. [2022-09-16 11:40:21,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 576 transitions. [2022-09-16 11:40:21,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 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 11:40:21,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 79.0) internal successors, (948), 12 states have internal predecessors, (948), 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 11:40:21,199 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 79.0) internal successors, (948), 12 states have internal predecessors, (948), 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 11:40:21,201 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 159 flow. Second operand 11 states and 576 transitions. [2022-09-16 11:40:21,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 111 transitions, 357 flow [2022-09-16 11:40:21,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 111 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:21,210 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 241 flow [2022-09-16 11:40:21,211 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=241, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2022-09-16 11:40:21,215 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 14 predicate places. [2022-09-16 11:40:21,216 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 241 flow [2022-09-16 11:40:21,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.333333333333336) internal successors, (435), 9 states have internal predecessors, (435), 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 11:40:21,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,216 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] [2022-09-16 11:40:21,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:40:21,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:21,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1895918028, now seen corresponding path program 1 times [2022-09-16 11:40:21,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811442227] [2022-09-16 11:40:21,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,368 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 11:40:21,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811442227] [2022-09-16 11:40:21,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811442227] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-16 11:40:21,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252693835] [2022-09-16 11:40:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:40:21,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:40:21,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:40:21,374 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 79 [2022-09-16 11:40:21,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 241 flow. Second operand has 9 states, 9 states have (on average 48.333333333333336) internal successors, (435), 9 states have internal predecessors, (435), 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 11:40:21,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 79 [2022-09-16 11:40:21,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,546 INFO L130 PetriNetUnfolder]: 28/258 cut-off events. [2022-09-16 11:40:21,546 INFO L131 PetriNetUnfolder]: For 66/79 co-relation queries the response was YES. [2022-09-16 11:40:21,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 258 events. 28/258 cut-off events. For 66/79 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1155 event pairs, 0 based on Foata normal form. 5/249 useless extension candidates. Maximal degree in co-relation 406. Up to 56 conditions per place. [2022-09-16 11:40:21,548 INFO L137 encePairwiseOnDemand]: 67/79 looper letters, 41 selfloop transitions, 15 changer transitions 0/105 dead transitions. [2022-09-16 11:40:21,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 419 flow [2022-09-16 11:40:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:40:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-16 11:40:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 564 transitions. [2022-09-16 11:40:21,550 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6490218642117376 [2022-09-16 11:40:21,550 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 564 transitions. [2022-09-16 11:40:21,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 564 transitions. [2022-09-16 11:40:21,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 564 transitions. [2022-09-16 11:40:21,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 51.27272727272727) internal successors, (564), 11 states have internal predecessors, (564), 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 11:40:21,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 79.0) internal successors, (948), 12 states have internal predecessors, (948), 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 11:40:21,553 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 79.0) internal successors, (948), 12 states have internal predecessors, (948), 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 11:40:21,553 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 241 flow. Second operand 11 states and 564 transitions. [2022-09-16 11:40:21,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 419 flow [2022-09-16 11:40:21,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 105 transitions, 414 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:40:21,557 INFO L231 Difference]: Finished difference. Result has 107 places, 94 transitions, 320 flow [2022-09-16 11:40:21,557 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=320, PETRI_PLACES=107, PETRI_TRANSITIONS=94} [2022-09-16 11:40:21,558 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 25 predicate places. [2022-09-16 11:40:21,558 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 94 transitions, 320 flow [2022-09-16 11:40:21,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.333333333333336) internal successors, (435), 9 states have internal predecessors, (435), 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 11:40:21,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,558 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] [2022-09-16 11:40:21,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:40:21,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:21,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1199934991, now seen corresponding path program 1 times [2022-09-16 11:40:21,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617922103] [2022-09-16 11:40:21,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,611 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 11:40:21,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617922103] [2022-09-16 11:40:21,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617922103] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:21,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591364048] [2022-09-16 11:40:21,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:40:21,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:40:21,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:40:21,614 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 79 [2022-09-16 11:40:21,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 94 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 11:40:21,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 79 [2022-09-16 11:40:21,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,645 INFO L130 PetriNetUnfolder]: 5/142 cut-off events. [2022-09-16 11:40:21,645 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-16 11:40:21,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 142 events. 5/142 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 278 event pairs, 0 based on Foata normal form. 2/140 useless extension candidates. Maximal degree in co-relation 190. Up to 25 conditions per place. [2022-09-16 11:40:21,646 INFO L137 encePairwiseOnDemand]: 75/79 looper letters, 18 selfloop transitions, 4 changer transitions 0/90 dead transitions. [2022-09-16 11:40:21,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 90 transitions, 321 flow [2022-09-16 11:40:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:40:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:40:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2022-09-16 11:40:21,647 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8481012658227848 [2022-09-16 11:40:21,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2022-09-16 11:40:21,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2022-09-16 11:40:21,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2022-09-16 11:40:21,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 11:40:21,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:40:21,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:40:21,649 INFO L175 Difference]: Start difference. First operand has 107 places, 94 transitions, 320 flow. Second operand 3 states and 201 transitions. [2022-09-16 11:40:21,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 90 transitions, 321 flow [2022-09-16 11:40:21,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 90 transitions, 302 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-09-16 11:40:21,652 INFO L231 Difference]: Finished difference. Result has 103 places, 88 transitions, 262 flow [2022-09-16 11:40:21,652 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=103, PETRI_TRANSITIONS=88} [2022-09-16 11:40:21,653 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 21 predicate places. [2022-09-16 11:40:21,653 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 88 transitions, 262 flow [2022-09-16 11:40:21,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 11:40:21,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,653 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] [2022-09-16 11:40:21,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:40:21,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:21,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1924554352, now seen corresponding path program 1 times [2022-09-16 11:40:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394713450] [2022-09-16 11:40:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,746 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 11:40:21,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394713450] [2022-09-16 11:40:21,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394713450] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-16 11:40:21,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547009974] [2022-09-16 11:40:21,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:40:21,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:40:21,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:40:21,748 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 79 [2022-09-16 11:40:21,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 88 transitions, 262 flow. Second operand has 9 states, 9 states have (on average 48.55555555555556) internal successors, (437), 9 states have internal predecessors, (437), 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 11:40:21,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 79 [2022-09-16 11:40:21,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,901 INFO L130 PetriNetUnfolder]: 19/158 cut-off events. [2022-09-16 11:40:21,901 INFO L131 PetriNetUnfolder]: For 42/60 co-relation queries the response was YES. [2022-09-16 11:40:21,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 158 events. 19/158 cut-off events. For 42/60 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 433 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 251. Up to 20 conditions per place. [2022-09-16 11:40:21,902 INFO L137 encePairwiseOnDemand]: 68/79 looper letters, 29 selfloop transitions, 9 changer transitions 11/96 dead transitions. [2022-09-16 11:40:21,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 96 transitions, 388 flow [2022-09-16 11:40:21,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 11:40:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-16 11:40:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 503 transitions. [2022-09-16 11:40:21,904 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6367088607594936 [2022-09-16 11:40:21,904 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 503 transitions. [2022-09-16 11:40:21,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 503 transitions. [2022-09-16 11:40:21,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 503 transitions. [2022-09-16 11:40:21,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 50.3) internal successors, (503), 10 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 11:40:21,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 79.0) internal successors, (869), 11 states have internal predecessors, (869), 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 11:40:21,907 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 79.0) internal successors, (869), 11 states have internal predecessors, (869), 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 11:40:21,907 INFO L175 Difference]: Start difference. First operand has 103 places, 88 transitions, 262 flow. Second operand 10 states and 503 transitions. [2022-09-16 11:40:21,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 96 transitions, 388 flow [2022-09-16 11:40:21,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 96 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:21,912 INFO L231 Difference]: Finished difference. Result has 109 places, 80 transitions, 248 flow [2022-09-16 11:40:21,912 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=248, PETRI_PLACES=109, PETRI_TRANSITIONS=80} [2022-09-16 11:40:21,913 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 27 predicate places. [2022-09-16 11:40:21,914 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 80 transitions, 248 flow [2022-09-16 11:40:21,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.55555555555556) internal successors, (437), 9 states have internal predecessors, (437), 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 11:40:21,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,914 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] [2022-09-16 11:40:21,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:40:21,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:21,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1218152312, now seen corresponding path program 1 times [2022-09-16 11:40:21,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738269088] [2022-09-16 11:40:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:22,093 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 11:40:22,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:22,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738269088] [2022-09-16 11:40:22,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738269088] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:22,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:22,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-16 11:40:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188479458] [2022-09-16 11:40:22,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:22,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:40:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:22,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:40:22,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:40:22,097 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 79 [2022-09-16 11:40:22,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 80 transitions, 248 flow. Second operand has 12 states, 12 states have (on average 41.333333333333336) internal successors, (496), 12 states have internal predecessors, (496), 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 11:40:22,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:22,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 79 [2022-09-16 11:40:22,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:22,336 INFO L130 PetriNetUnfolder]: 24/153 cut-off events. [2022-09-16 11:40:22,336 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-09-16 11:40:22,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 153 events. 24/153 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 399 event pairs, 24 based on Foata normal form. 1/153 useless extension candidates. Maximal degree in co-relation 295. Up to 60 conditions per place. [2022-09-16 11:40:22,337 INFO L137 encePairwiseOnDemand]: 64/79 looper letters, 29 selfloop transitions, 16 changer transitions 2/83 dead transitions. [2022-09-16 11:40:22,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 83 transitions, 346 flow [2022-09-16 11:40:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 11:40:22,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-09-16 11:40:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 711 transitions. [2022-09-16 11:40:22,339 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2022-09-16 11:40:22,339 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 711 transitions. [2022-09-16 11:40:22,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 711 transitions. [2022-09-16 11:40:22,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:22,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 711 transitions. [2022-09-16 11:40:22,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 41.8235294117647) internal successors, (711), 17 states have internal predecessors, (711), 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 11:40:22,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 79.0) internal successors, (1422), 18 states have internal predecessors, (1422), 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 11:40:22,343 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 79.0) internal successors, (1422), 18 states have internal predecessors, (1422), 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 11:40:22,343 INFO L175 Difference]: Start difference. First operand has 109 places, 80 transitions, 248 flow. Second operand 17 states and 711 transitions. [2022-09-16 11:40:22,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 83 transitions, 346 flow [2022-09-16 11:40:22,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 83 transitions, 312 flow, removed 0 selfloop flow, removed 17 redundant places. [2022-09-16 11:40:22,346 INFO L231 Difference]: Finished difference. Result has 107 places, 79 transitions, 242 flow [2022-09-16 11:40:22,346 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=242, PETRI_PLACES=107, PETRI_TRANSITIONS=79} [2022-09-16 11:40:22,346 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 25 predicate places. [2022-09-16 11:40:22,347 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 79 transitions, 242 flow [2022-09-16 11:40:22,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 41.333333333333336) internal successors, (496), 12 states have internal predecessors, (496), 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 11:40:22,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:22,347 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] [2022-09-16 11:40:22,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:40:22,367 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:22,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash 792559580, now seen corresponding path program 1 times [2022-09-16 11:40:22,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:22,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591728212] [2022-09-16 11:40:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:22,511 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 11:40:22,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:22,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591728212] [2022-09-16 11:40:22,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591728212] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:22,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:22,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-16 11:40:22,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473095389] [2022-09-16 11:40:22,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:22,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:40:22,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:40:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:40:22,514 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 79 [2022-09-16 11:40:22,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 79 transitions, 242 flow. Second operand has 12 states, 12 states have (on average 41.333333333333336) internal successors, (496), 12 states have internal predecessors, (496), 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 11:40:22,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:22,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 79 [2022-09-16 11:40:22,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:22,795 INFO L130 PetriNetUnfolder]: 20/129 cut-off events. [2022-09-16 11:40:22,796 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-09-16 11:40:22,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 129 events. 20/129 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 292 event pairs, 0 based on Foata normal form. 5/134 useless extension candidates. Maximal degree in co-relation 212. Up to 36 conditions per place. [2022-09-16 11:40:22,797 INFO L137 encePairwiseOnDemand]: 64/79 looper letters, 36 selfloop transitions, 16 changer transitions 2/90 dead transitions. [2022-09-16 11:40:22,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 90 transitions, 370 flow [2022-09-16 11:40:22,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 11:40:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-09-16 11:40:22,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 718 transitions. [2022-09-16 11:40:22,799 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5346239761727476 [2022-09-16 11:40:22,799 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 718 transitions. [2022-09-16 11:40:22,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 718 transitions. [2022-09-16 11:40:22,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:22,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 718 transitions. [2022-09-16 11:40:22,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 42.23529411764706) internal successors, (718), 17 states have internal predecessors, (718), 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 11:40:22,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 79.0) internal successors, (1422), 18 states have internal predecessors, (1422), 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 11:40:22,802 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 79.0) internal successors, (1422), 18 states have internal predecessors, (1422), 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 11:40:22,802 INFO L175 Difference]: Start difference. First operand has 107 places, 79 transitions, 242 flow. Second operand 17 states and 718 transitions. [2022-09-16 11:40:22,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 90 transitions, 370 flow [2022-09-16 11:40:22,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 90 transitions, 325 flow, removed 2 selfloop flow, removed 17 redundant places. [2022-09-16 11:40:22,805 INFO L231 Difference]: Finished difference. Result has 105 places, 78 transitions, 225 flow [2022-09-16 11:40:22,805 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=225, PETRI_PLACES=105, PETRI_TRANSITIONS=78} [2022-09-16 11:40:22,805 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 23 predicate places. [2022-09-16 11:40:22,806 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 78 transitions, 225 flow [2022-09-16 11:40:22,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 41.333333333333336) internal successors, (496), 12 states have internal predecessors, (496), 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 11:40:22,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:22,806 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] [2022-09-16 11:40:22,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:40:22,806 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:22,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1824087820, now seen corresponding path program 1 times [2022-09-16 11:40:22,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:22,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498931604] [2022-09-16 11:40:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:22,843 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 11:40:22,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:22,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498931604] [2022-09-16 11:40:22,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498931604] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:22,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:22,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393411376] [2022-09-16 11:40:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:22,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:22,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:22,846 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 79 [2022-09-16 11:40:22,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 78 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 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 11:40:22,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:22,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 79 [2022-09-16 11:40:22,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:22,913 INFO L130 PetriNetUnfolder]: 10/105 cut-off events. [2022-09-16 11:40:22,913 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-16 11:40:22,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 105 events. 10/105 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 8 based on Foata normal form. 1/106 useless extension candidates. Maximal degree in co-relation 164. Up to 36 conditions per place. [2022-09-16 11:40:22,913 INFO L137 encePairwiseOnDemand]: 71/79 looper letters, 27 selfloop transitions, 2 changer transitions 15/81 dead transitions. [2022-09-16 11:40:22,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 81 transitions, 309 flow [2022-09-16 11:40:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 347 transitions. [2022-09-16 11:40:22,915 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6274864376130199 [2022-09-16 11:40:22,915 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 347 transitions. [2022-09-16 11:40:22,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 347 transitions. [2022-09-16 11:40:22,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:22,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 347 transitions. [2022-09-16 11:40:22,916 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 11:40:22,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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 11:40:22,917 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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 11:40:22,918 INFO L175 Difference]: Start difference. First operand has 105 places, 78 transitions, 225 flow. Second operand 7 states and 347 transitions. [2022-09-16 11:40:22,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 81 transitions, 309 flow [2022-09-16 11:40:22,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 81 transitions, 265 flow, removed 2 selfloop flow, removed 17 redundant places. [2022-09-16 11:40:22,919 INFO L231 Difference]: Finished difference. Result has 93 places, 66 transitions, 150 flow [2022-09-16 11:40:22,920 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=150, PETRI_PLACES=93, PETRI_TRANSITIONS=66} [2022-09-16 11:40:22,920 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2022-09-16 11:40:22,920 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 66 transitions, 150 flow [2022-09-16 11:40:22,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 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 11:40:22,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:22,921 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] [2022-09-16 11:40:22,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:40:22,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:40:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1200456600, now seen corresponding path program 1 times [2022-09-16 11:40:22,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:22,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430220049] [2022-09-16 11:40:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:22,967 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 11:40:22,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:22,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430220049] [2022-09-16 11:40:22,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430220049] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:22,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:22,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:22,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002575684] [2022-09-16 11:40:22,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:22,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:22,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:22,971 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 79 [2022-09-16 11:40:22,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 66 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 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 11:40:22,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:22,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 79 [2022-09-16 11:40:22,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:23,031 INFO L130 PetriNetUnfolder]: 6/79 cut-off events. [2022-09-16 11:40:23,031 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-16 11:40:23,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 79 events. 6/79 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 129. Up to 16 conditions per place. [2022-09-16 11:40:23,031 INFO L137 encePairwiseOnDemand]: 71/79 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2022-09-16 11:40:23,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 69 transitions, 216 flow [2022-09-16 11:40:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 340 transitions. [2022-09-16 11:40:23,033 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6148282097649186 [2022-09-16 11:40:23,033 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 340 transitions. [2022-09-16 11:40:23,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 340 transitions. [2022-09-16 11:40:23,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:23,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 340 transitions. [2022-09-16 11:40:23,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 48.57142857142857) internal successors, (340), 7 states have internal predecessors, (340), 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 11:40:23,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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 11:40:23,036 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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 11:40:23,036 INFO L175 Difference]: Start difference. First operand has 93 places, 66 transitions, 150 flow. Second operand 7 states and 340 transitions. [2022-09-16 11:40:23,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 69 transitions, 216 flow [2022-09-16 11:40:23,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:40:23,037 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2022-09-16 11:40:23,037 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2022-09-16 11:40:23,041 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2022-09-16 11:40:23,041 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2022-09-16 11:40:23,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 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 11:40:23,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-09-16 11:40:23,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-09-16 11:40:23,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-09-16 11:40:23,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-09-16 11:40:23,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-09-16 11:40:23,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-09-16 11:40:23,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-09-16 11:40:23,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-09-16 11:40:23,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-09-16 11:40:23,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:40:23,046 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:23,051 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:40:23,052 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:40:23,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:40:23 BasicIcfg [2022-09-16 11:40:23,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:40:23,063 INFO L158 Benchmark]: Toolchain (without parser) took 3546.37ms. Allocated memory was 218.1MB in the beginning and 311.4MB in the end (delta: 93.3MB). Free memory was 188.1MB in the beginning and 201.0MB in the end (delta: -13.0MB). Peak memory consumption was 79.5MB. Max. memory is 8.0GB. [2022-09-16 11:40:23,063 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 218.1MB. Free memory is still 176.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:23,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.10ms. Allocated memory was 218.1MB in the beginning and 311.4MB in the end (delta: 93.3MB). Free memory was 188.1MB in the beginning and 276.3MB in the end (delta: -88.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-09-16 11:40:23,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.77ms. Allocated memory is still 311.4MB. Free memory was 276.3MB in the beginning and 274.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:23,065 INFO L158 Benchmark]: Boogie Preprocessor took 33.47ms. Allocated memory is still 311.4MB. Free memory was 274.2MB in the beginning and 273.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:40:23,068 INFO L158 Benchmark]: RCFGBuilder took 366.64ms. Allocated memory is still 311.4MB. Free memory was 272.9MB in the beginning and 260.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:40:23,068 INFO L158 Benchmark]: TraceAbstraction took 2723.74ms. Allocated memory is still 311.4MB. Free memory was 259.6MB in the beginning and 201.0MB in the end (delta: 58.5MB). Peak memory consumption was 59.2MB. Max. memory is 8.0GB. [2022-09-16 11:40:23,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 218.1MB. Free memory is still 176.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.10ms. Allocated memory was 218.1MB in the beginning and 311.4MB in the end (delta: 93.3MB). Free memory was 188.1MB in the beginning and 276.3MB in the end (delta: -88.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.77ms. Allocated memory is still 311.4MB. Free memory was 276.3MB in the beginning and 274.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.47ms. Allocated memory is still 311.4MB. Free memory was 274.2MB in the beginning and 273.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 366.64ms. Allocated memory is still 311.4MB. Free memory was 272.9MB in the beginning and 260.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2723.74ms. Allocated memory is still 311.4MB. Free memory was 259.6MB in the beginning and 201.0MB in the end (delta: 58.5MB). Peak memory consumption was 59.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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, 9 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: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 713 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 713 mSDsluCounter, 393 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 309 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 961 IncrementalHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 98 mSDtfsCounter, 961 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred in iteration=2, InterpolantAutomatonStates: 83, 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, 0.7s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 359 ConstructedInterpolants, 0 QuantifiedInterpolants, 2146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:40:23,099 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...