/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:42:28,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:42:28,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 11:42:28,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:42:28,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:42:28,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:42:28,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:42:28,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:42:28,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:42:28,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:42:28,117 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:42:28,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:42:28,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:42:28,118 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:42:28,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:42:28,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:42:28,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:42:28,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:42:28,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:42:28,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:42:28,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:42:28,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:42:28,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:42:28,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:42:28,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:42:28,121 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:42:28,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:42:28,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:42:28,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:42:28,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:42:28,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:42:28,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:42:28,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:42:28,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:42:28,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:42:28,125 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:42:28,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:42:28,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:42:28,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:42:28,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:42:28,442 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:42:28,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-27 11:42:29,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:42:29,866 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:42:29,866 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-27 11:42:29,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aac65a7c/e002a769cc5d424cb62d48b58796a23b/FLAGd288d0608 [2023-08-27 11:42:29,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aac65a7c/e002a769cc5d424cb62d48b58796a23b [2023-08-27 11:42:29,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:42:29,902 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:42:29,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:42:29,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:42:29,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:42:29,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:42:29" (1/1) ... [2023-08-27 11:42:29,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf811d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:29, skipping insertion in model container [2023-08-27 11:42:29,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:42:29" (1/1) ... [2023-08-27 11:42:29,950 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:42:30,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:42:30,308 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:42:30,336 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:42:30,338 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:42:30,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:42:30,407 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:42:30,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30 WrapperNode [2023-08-27 11:42:30,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:42:30,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:42:30,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:42:30,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:42:30,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,465 INFO L138 Inliner]: procedures = 170, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-08-27 11:42:30,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:42:30,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:42:30,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:42:30,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:42:30,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:42:30,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:42:30,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:42:30,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:42:30,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (1/1) ... [2023-08-27 11:42:30,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:42:30,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:42:30,534 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) [2023-08-27 11:42:30,547 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 [2023-08-27 11:42:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:42:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:42:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:42:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:42:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:42:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:42:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:42:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:42:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:42:30,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:42:30,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:42:30,585 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:42:30,708 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:42:30,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:42:30,876 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:42:30,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:42:30,882 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-27 11:42:30,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:42:30 BoogieIcfgContainer [2023-08-27 11:42:30,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:42:30,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:42:30,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:42:30,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:42:30,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:42:29" (1/3) ... [2023-08-27 11:42:30,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e94eea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:42:30, skipping insertion in model container [2023-08-27 11:42:30,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:30" (2/3) ... [2023-08-27 11:42:30,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e94eea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:42:30, skipping insertion in model container [2023-08-27 11:42:30,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:42:30" (3/3) ... [2023-08-27 11:42:30,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-08-27 11:42:30,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:42:30,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 11:42:30,910 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:42:30,964 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 11:42:30,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 116 transitions, 240 flow [2023-08-27 11:42:31,050 INFO L124 PetriNetUnfolderBase]: 10/115 cut-off events. [2023-08-27 11:42:31,050 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:42:31,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 115 events. 10/115 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2023-08-27 11:42:31,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 116 transitions, 240 flow [2023-08-27 11:42:31,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 106 transitions, 215 flow [2023-08-27 11:42:31,062 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:42:31,076 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 106 transitions, 215 flow [2023-08-27 11:42:31,080 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 106 transitions, 215 flow [2023-08-27 11:42:31,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 106 transitions, 215 flow [2023-08-27 11:42:31,124 INFO L124 PetriNetUnfolderBase]: 10/106 cut-off events. [2023-08-27 11:42:31,124 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:31,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 10/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 174 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2023-08-27 11:42:31,127 INFO L119 LiptonReduction]: Number of co-enabled transitions 2132 [2023-08-27 11:42:34,879 INFO L134 LiptonReduction]: Checked pairs total: 4215 [2023-08-27 11:42:34,879 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-08-27 11:42:34,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:42:34,902 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;@77413212, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:42:34,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-27 11:42:34,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:42:34,907 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-08-27 11:42:34,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:34,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:34,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 11:42:34,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:34,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 420626124, now seen corresponding path program 1 times [2023-08-27 11:42:34,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:34,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632425083] [2023-08-27 11:42:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:34,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:35,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:35,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632425083] [2023-08-27 11:42:35,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632425083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:35,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:35,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:42:35,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818126259] [2023-08-27 11:42:35,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:35,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:42:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:35,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:42:35,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:42:35,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 217 [2023-08-27 11:42:35,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 31 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:35,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 217 [2023-08-27 11:42:35,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:35,540 INFO L124 PetriNetUnfolderBase]: 70/183 cut-off events. [2023-08-27 11:42:35,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:35,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 183 events. 70/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 740 event pairs, 8 based on Foata normal form. 6/161 useless extension candidates. Maximal degree in co-relation 348. Up to 99 conditions per place. [2023-08-27 11:42:35,543 INFO L140 encePairwiseOnDemand]: 199/217 looper letters, 28 selfloop transitions, 5 changer transitions 4/39 dead transitions. [2023-08-27 11:42:35,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 39 transitions, 155 flow [2023-08-27 11:42:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 11:42:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 11:42:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 446 transitions. [2023-08-27 11:42:35,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110599078341014 [2023-08-27 11:42:35,562 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 446 transitions. [2023-08-27 11:42:35,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 446 transitions. [2023-08-27 11:42:35,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:35,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 446 transitions. [2023-08-27 11:42:35,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,579 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,580 INFO L175 Difference]: Start difference. First operand has 26 places, 31 transitions, 65 flow. Second operand 5 states and 446 transitions. [2023-08-27 11:42:35,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 39 transitions, 155 flow [2023-08-27 11:42:35,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:42:35,585 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 72 flow [2023-08-27 11:42:35,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-08-27 11:42:35,593 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-27 11:42:35,593 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 72 flow [2023-08-27 11:42:35,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:35,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:35,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:42:35,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:35,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:35,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1842424166, now seen corresponding path program 1 times [2023-08-27 11:42:35,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:35,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153641290] [2023-08-27 11:42:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:35,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:35,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153641290] [2023-08-27 11:42:35,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153641290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:35,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:35,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:42:35,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344657176] [2023-08-27 11:42:35,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:35,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:42:35,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:35,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:42:35,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:42:35,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 217 [2023-08-27 11:42:35,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:35,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 217 [2023-08-27 11:42:35,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:35,832 INFO L124 PetriNetUnfolderBase]: 59/157 cut-off events. [2023-08-27 11:42:35,833 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-08-27 11:42:35,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 157 events. 59/157 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 608 event pairs, 31 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 363. Up to 119 conditions per place. [2023-08-27 11:42:35,837 INFO L140 encePairwiseOnDemand]: 215/217 looper letters, 21 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 11:42:35,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 122 flow [2023-08-27 11:42:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:42:35,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:42:35,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-27 11:42:35,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41321044546851 [2023-08-27 11:42:35,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-27 11:42:35,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-27 11:42:35,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:35,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-27 11:42:35,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,843 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 72 flow. Second operand 3 states and 269 transitions. [2023-08-27 11:42:35,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 122 flow [2023-08-27 11:42:35,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 115 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:42:35,845 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 65 flow [2023-08-27 11:42:35,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-27 11:42:35,846 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-27 11:42:35,847 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 65 flow [2023-08-27 11:42:35,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:35,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:35,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:35,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:42:35,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:35,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1842424165, now seen corresponding path program 1 times [2023-08-27 11:42:35,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:35,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694285600] [2023-08-27 11:42:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:35,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:36,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:36,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694285600] [2023-08-27 11:42:36,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694285600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:36,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:36,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 11:42:36,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756127261] [2023-08-27 11:42:36,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:36,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 11:42:36,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:36,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 11:42:36,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 11:42:36,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 217 [2023-08-27 11:42:36,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:36,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 217 [2023-08-27 11:42:36,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:36,193 INFO L124 PetriNetUnfolderBase]: 51/142 cut-off events. [2023-08-27 11:42:36,193 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-08-27 11:42:36,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 142 events. 51/142 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 514 event pairs, 3 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 320. Up to 37 conditions per place. [2023-08-27 11:42:36,194 INFO L140 encePairwiseOnDemand]: 210/217 looper letters, 15 selfloop transitions, 5 changer transitions 21/42 dead transitions. [2023-08-27 11:42:36,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 198 flow [2023-08-27 11:42:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 11:42:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 11:42:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 581 transitions. [2023-08-27 11:42:36,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3824884792626728 [2023-08-27 11:42:36,196 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 581 transitions. [2023-08-27 11:42:36,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 581 transitions. [2023-08-27 11:42:36,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:36,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 581 transitions. [2023-08-27 11:42:36,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,201 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,201 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 65 flow. Second operand 7 states and 581 transitions. [2023-08-27 11:42:36,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 198 flow [2023-08-27 11:42:36,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:42:36,203 INFO L231 Difference]: Finished difference. Result has 33 places, 14 transitions, 57 flow [2023-08-27 11:42:36,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=57, PETRI_PLACES=33, PETRI_TRANSITIONS=14} [2023-08-27 11:42:36,203 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-27 11:42:36,203 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 14 transitions, 57 flow [2023-08-27 11:42:36,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:36,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:36,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 11:42:36,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:36,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash -816291475, now seen corresponding path program 1 times [2023-08-27 11:42:36,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:36,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615463892] [2023-08-27 11:42:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:36,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:36,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:36,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615463892] [2023-08-27 11:42:36,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615463892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:36,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:36,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:42:36,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412005613] [2023-08-27 11:42:36,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:36,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:42:36,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:36,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:42:36,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:42:36,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 217 [2023-08-27 11:42:36,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 14 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:36,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 217 [2023-08-27 11:42:36,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:36,315 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2023-08-27 11:42:36,316 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 11:42:36,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 16 events. 0/16 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 9/25 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-27 11:42:36,316 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 9 selfloop transitions, 4 changer transitions 0/14 dead transitions. [2023-08-27 11:42:36,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 14 transitions, 83 flow [2023-08-27 11:42:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:42:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:42:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2023-08-27 11:42:36,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39055299539170507 [2023-08-27 11:42:36,318 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 339 transitions. [2023-08-27 11:42:36,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 339 transitions. [2023-08-27 11:42:36,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:36,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 339 transitions. [2023-08-27 11:42:36,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,321 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,321 INFO L175 Difference]: Start difference. First operand has 33 places, 14 transitions, 57 flow. Second operand 4 states and 339 transitions. [2023-08-27 11:42:36,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 14 transitions, 83 flow [2023-08-27 11:42:36,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 61 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-27 11:42:36,322 INFO L231 Difference]: Finished difference. Result has 22 places, 14 transitions, 43 flow [2023-08-27 11:42:36,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=43, PETRI_PLACES=22, PETRI_TRANSITIONS=14} [2023-08-27 11:42:36,323 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-08-27 11:42:36,323 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 14 transitions, 43 flow [2023-08-27 11:42:36,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:36,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:36,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 11:42:36,324 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:36,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1612238749, now seen corresponding path program 1 times [2023-08-27 11:42:36,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:36,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074656854] [2023-08-27 11:42:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:36,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:36,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074656854] [2023-08-27 11:42:36,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074656854] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:36,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:36,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 11:42:36,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969330275] [2023-08-27 11:42:36,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:36,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 11:42:36,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:36,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 11:42:36,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-27 11:42:36,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 217 [2023-08-27 11:42:36,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 14 transitions, 43 flow. Second operand has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:36,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 217 [2023-08-27 11:42:36,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:36,793 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-08-27 11:42:36,793 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:36,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-27 11:42:36,793 INFO L140 encePairwiseOnDemand]: 209/217 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-08-27 11:42:36,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 15 transitions, 73 flow [2023-08-27 11:42:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 11:42:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 11:42:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2023-08-27 11:42:36,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3533026113671275 [2023-08-27 11:42:36,797 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 690 transitions. [2023-08-27 11:42:36,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 690 transitions. [2023-08-27 11:42:36,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:36,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 690 transitions. [2023-08-27 11:42:36,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 217.0) internal successors, (2170), 10 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,804 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 217.0) internal successors, (2170), 10 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,805 INFO L175 Difference]: Start difference. First operand has 22 places, 14 transitions, 43 flow. Second operand 9 states and 690 transitions. [2023-08-27 11:42:36,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 15 transitions, 73 flow [2023-08-27 11:42:36,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 15 transitions, 66 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:42:36,806 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-27 11:42:36,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-27 11:42:36,808 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2023-08-27 11:42:36,808 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-27 11:42:36,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:36,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-27 11:42:36,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2023-08-27 11:42:36,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-27 11:42:36,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-27 11:42:36,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-08-27 11:42:36,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-08-27 11:42:36,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-27 11:42:36,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-27 11:42:36,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-27 11:42:36,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-27 11:42:36,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 11:42:36,816 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-27 11:42:36,820 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:42:36,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:42:36,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:42:36 BasicIcfg [2023-08-27 11:42:36,823 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:42:36,823 INFO L158 Benchmark]: Toolchain (without parser) took 6921.43ms. Allocated memory was 377.5MB in the beginning and 471.9MB in the end (delta: 94.4MB). Free memory was 336.1MB in the beginning and 381.4MB in the end (delta: -45.2MB). Peak memory consumption was 51.1MB. Max. memory is 16.0GB. [2023-08-27 11:42:36,824 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 377.5MB. Free memory is still 354.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:42:36,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.33ms. Allocated memory is still 377.5MB. Free memory was 336.1MB in the beginning and 316.3MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 11:42:36,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.13ms. Allocated memory is still 377.5MB. Free memory was 316.3MB in the beginning and 314.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:42:36,828 INFO L158 Benchmark]: Boogie Preprocessor took 36.53ms. Allocated memory is still 377.5MB. Free memory was 314.1MB in the beginning and 312.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:42:36,828 INFO L158 Benchmark]: RCFGBuilder took 385.34ms. Allocated memory is still 377.5MB. Free memory was 312.6MB in the beginning and 343.6MB in the end (delta: -31.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. [2023-08-27 11:42:36,829 INFO L158 Benchmark]: TraceAbstraction took 5932.53ms. Allocated memory was 377.5MB in the beginning and 471.9MB in the end (delta: 94.4MB). Free memory was 342.8MB in the beginning and 381.4MB in the end (delta: -38.6MB). Peak memory consumption was 56.4MB. Max. memory is 16.0GB. [2023-08-27 11:42:36,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 377.5MB. Free memory is still 354.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 504.33ms. Allocated memory is still 377.5MB. Free memory was 336.1MB in the beginning and 316.3MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.13ms. Allocated memory is still 377.5MB. Free memory was 316.3MB in the beginning and 314.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.53ms. Allocated memory is still 377.5MB. Free memory was 314.1MB in the beginning and 312.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 385.34ms. Allocated memory is still 377.5MB. Free memory was 312.6MB in the beginning and 343.6MB in the end (delta: -31.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. * TraceAbstraction took 5932.53ms. Allocated memory was 377.5MB in the beginning and 471.9MB in the end (delta: 94.4MB). Free memory was 342.8MB in the beginning and 381.4MB in the end (delta: -38.6MB). Peak memory consumption was 56.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 100 PlacesBefore, 26 PlacesAfterwards, 106 TransitionsBefore, 31 TransitionsAfterwards, 2132 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 101 TotalNumberOfCompositions, 4215 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2129, independent: 1974, independent conditional: 0, independent unconditional: 1974, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1255, independent: 1214, independent conditional: 0, independent unconditional: 1214, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2129, independent: 760, independent conditional: 0, independent unconditional: 760, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 1255, unknown conditional: 0, unknown unconditional: 1255] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 690]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: 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, 144 locations, 10 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: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 1 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=1, InterpolantAutomatonStates: 28, 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, 1.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 11:42:36,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...