/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:09:25,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:09:25,146 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 [2023-08-25 04:09:25,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:09:25,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:09:25,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:09:25,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:09:25,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:09:25,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:09:25,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:09:25,171 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:09:25,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:09:25,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:09:25,172 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:09:25,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:09:25,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:09:25,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:09:25,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:09:25,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:09:25,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:09:25,174 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:09:25,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:09:25,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:09:25,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:09:25,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:09:25,178 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:09:25,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:09:25,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:09:25,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:09:25,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:09:25,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:09:25,179 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:09:25,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:09:25,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:09:25,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:09:25,180 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:09:25,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:09:25,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:09:25,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:09:25,505 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:09:25,506 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:09:25,507 INFO L431 ainManager$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 [2023-08-25 04:09:26,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:09:26,971 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:09:26,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-25 04:09:26,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35dad52fc/104b6dbb01754f4abf3de819a584f29c/FLAGdf6be9612 [2023-08-25 04:09:27,004 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35dad52fc/104b6dbb01754f4abf3de819a584f29c [2023-08-25 04:09:27,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:09:27,011 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:09:27,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:09:27,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:09:27,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:09:27,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186fc70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27, skipping insertion in model container [2023-08-25 04:09:27,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,059 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:09:27,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:09:27,332 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:09:27,354 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:09:27,355 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:09:27,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:09:27,406 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:09:27,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27 WrapperNode [2023-08-25 04:09:27,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:09:27,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:09:27,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:09:27,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:09:27,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,442 INFO L138 Inliner]: procedures = 170, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2023-08-25 04:09:27,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:09:27,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:09:27,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:09:27,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:09:27,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:09:27,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:09:27,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:09:27,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:09:27,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (1/1) ... [2023-08-25 04:09:27,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:09:27,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:09:27,496 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) [2023-08-25 04:09:27,506 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 [2023-08-25 04:09:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:09:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:09:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:09:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:09:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:09:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 04:09:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 04:09:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:09:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:09:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:09:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:09:27,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 04:09:27,626 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:09:27,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:09:27,904 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:09:27,909 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:09:27,909 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-25 04:09:27,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:09:27 BoogieIcfgContainer [2023-08-25 04:09:27,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:09:27,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:09:27,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:09:27,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:09:27,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:09:27" (1/3) ... [2023-08-25 04:09:27,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d48752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:09:27, skipping insertion in model container [2023-08-25 04:09:27,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:27" (2/3) ... [2023-08-25 04:09:27,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d48752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:09:27, skipping insertion in model container [2023-08-25 04:09:27,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:09:27" (3/3) ... [2023-08-25 04:09:27,919 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-08-25 04:09:27,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:09:27,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-25 04:09:27,932 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:09:28,009 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 04:09:28,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 304 flow [2023-08-25 04:09:28,116 INFO L124 PetriNetUnfolderBase]: 10/147 cut-off events. [2023-08-25 04:09:28,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:09:28,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 147 events. 10/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 305 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 99. Up to 3 conditions per place. [2023-08-25 04:09:28,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 148 transitions, 304 flow [2023-08-25 04:09:28,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 138 transitions, 279 flow [2023-08-25 04:09:28,133 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:09:28,143 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 138 transitions, 279 flow [2023-08-25 04:09:28,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 138 transitions, 279 flow [2023-08-25 04:09:28,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 138 transitions, 279 flow [2023-08-25 04:09:28,189 INFO L124 PetriNetUnfolderBase]: 10/138 cut-off events. [2023-08-25 04:09:28,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:09:28,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 138 events. 10/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 99. Up to 3 conditions per place. [2023-08-25 04:09:28,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 4636 [2023-08-25 04:09:31,246 INFO L134 LiptonReduction]: Checked pairs total: 24858 [2023-08-25 04:09:31,246 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-08-25 04:09:31,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:09:31,259 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;@3e1e92a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:09:31,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-25 04:09:31,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:09:31,263 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-08-25 04:09:31,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:09:31,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:31,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:31,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:31,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:31,267 INFO L85 PathProgramCache]: Analyzing trace with hash 108398595, now seen corresponding path program 1 times [2023-08-25 04:09:31,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:31,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758652365] [2023-08-25 04:09:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:31,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:31,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:31,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758652365] [2023-08-25 04:09:31,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758652365] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:31,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:31,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:09:31,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174461660] [2023-08-25 04:09:31,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:31,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:09:31,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:31,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:09:31,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:09:31,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 240 [2023-08-25 04:09:31,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 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) [2023-08-25 04:09:31,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:31,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 240 [2023-08-25 04:09:31,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:32,219 INFO L124 PetriNetUnfolderBase]: 781/1717 cut-off events. [2023-08-25 04:09:32,219 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:09:32,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3370 conditions, 1717 events. 781/1717 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9383 event pairs, 108 based on Foata normal form. 17/1490 useless extension candidates. Maximal degree in co-relation 3361. Up to 888 conditions per place. [2023-08-25 04:09:32,229 INFO L140 encePairwiseOnDemand]: 217/240 looper letters, 148 selfloop transitions, 38 changer transitions 0/190 dead transitions. [2023-08-25 04:09:32,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 190 transitions, 755 flow [2023-08-25 04:09:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:09:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:09:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-08-25 04:09:32,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5402777777777777 [2023-08-25 04:09:32,241 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-08-25 04:09:32,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-08-25 04:09:32,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:32,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-08-25 04:09:32,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 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) [2023-08-25 04:09:32,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:32,254 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:32,256 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 127 flow. Second operand 6 states and 778 transitions. [2023-08-25 04:09:32,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 190 transitions, 755 flow [2023-08-25 04:09:32,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 190 transitions, 754 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:09:32,262 INFO L231 Difference]: Finished difference. Result has 67 places, 91 transitions, 364 flow [2023-08-25 04:09:32,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=67, PETRI_TRANSITIONS=91} [2023-08-25 04:09:32,265 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2023-08-25 04:09:32,266 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 91 transitions, 364 flow [2023-08-25 04:09:32,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 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) [2023-08-25 04:09:32,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:32,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:32,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:09:32,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:32,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:32,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2052711007, now seen corresponding path program 1 times [2023-08-25 04:09:32,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:32,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796714322] [2023-08-25 04:09:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:32,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:32,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796714322] [2023-08-25 04:09:32,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796714322] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:32,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:32,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:09:32,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509611025] [2023-08-25 04:09:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:32,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:09:32,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:32,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:09:32,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:09:32,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 240 [2023-08-25 04:09:32,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 91 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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) [2023-08-25 04:09:32,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:32,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 240 [2023-08-25 04:09:32,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:32,830 INFO L124 PetriNetUnfolderBase]: 722/1555 cut-off events. [2023-08-25 04:09:32,830 INFO L125 PetriNetUnfolderBase]: For 570/570 co-relation queries the response was YES. [2023-08-25 04:09:32,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3907 conditions, 1555 events. 722/1555 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8032 event pairs, 286 based on Foata normal form. 0/1378 useless extension candidates. Maximal degree in co-relation 3894. Up to 994 conditions per place. [2023-08-25 04:09:32,836 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 151 selfloop transitions, 18 changer transitions 0/173 dead transitions. [2023-08-25 04:09:32,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 173 transitions, 1010 flow [2023-08-25 04:09:32,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:09:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:09:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2023-08-25 04:09:32,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4708333333333333 [2023-08-25 04:09:32,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 678 transitions. [2023-08-25 04:09:32,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 678 transitions. [2023-08-25 04:09:32,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:32,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 678 transitions. [2023-08-25 04:09:32,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2023-08-25 04:09:32,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:32,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:32,843 INFO L175 Difference]: Start difference. First operand has 67 places, 91 transitions, 364 flow. Second operand 6 states and 678 transitions. [2023-08-25 04:09:32,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 173 transitions, 1010 flow [2023-08-25 04:09:32,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 173 transitions, 1010 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:32,862 INFO L231 Difference]: Finished difference. Result has 70 places, 89 transitions, 396 flow [2023-08-25 04:09:32,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=70, PETRI_TRANSITIONS=89} [2023-08-25 04:09:32,862 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2023-08-25 04:09:32,863 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 89 transitions, 396 flow [2023-08-25 04:09:32,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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) [2023-08-25 04:09:32,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:32,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:32,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:09:32,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:32,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:32,866 INFO L85 PathProgramCache]: Analyzing trace with hash 108398799, now seen corresponding path program 1 times [2023-08-25 04:09:32,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:32,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284034506] [2023-08-25 04:09:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:32,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:33,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284034506] [2023-08-25 04:09:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284034506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:33,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:33,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:09:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437644714] [2023-08-25 04:09:33,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:33,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:09:33,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:09:33,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:09:33,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 240 [2023-08-25 04:09:33,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 89 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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) [2023-08-25 04:09:33,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:33,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 240 [2023-08-25 04:09:33,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:33,196 INFO L124 PetriNetUnfolderBase]: 425/1273 cut-off events. [2023-08-25 04:09:33,197 INFO L125 PetriNetUnfolderBase]: For 582/590 co-relation queries the response was YES. [2023-08-25 04:09:33,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3157 conditions, 1273 events. 425/1273 cut-off events. For 582/590 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7840 event pairs, 135 based on Foata normal form. 0/1212 useless extension candidates. Maximal degree in co-relation 3143. Up to 526 conditions per place. [2023-08-25 04:09:33,204 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 78 selfloop transitions, 7 changer transitions 0/132 dead transitions. [2023-08-25 04:09:33,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 132 transitions, 760 flow [2023-08-25 04:09:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:09:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:09:33,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 577 transitions. [2023-08-25 04:09:33,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48083333333333333 [2023-08-25 04:09:33,206 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 577 transitions. [2023-08-25 04:09:33,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 577 transitions. [2023-08-25 04:09:33,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:33,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 577 transitions. [2023-08-25 04:09:33,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 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) [2023-08-25 04:09:33,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-08-25 04:09:33,211 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-08-25 04:09:33,211 INFO L175 Difference]: Start difference. First operand has 70 places, 89 transitions, 396 flow. Second operand 5 states and 577 transitions. [2023-08-25 04:09:33,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 132 transitions, 760 flow [2023-08-25 04:09:33,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 132 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:09:33,217 INFO L231 Difference]: Finished difference. Result has 72 places, 94 transitions, 414 flow [2023-08-25 04:09:33,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=94} [2023-08-25 04:09:33,219 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2023-08-25 04:09:33,219 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 94 transitions, 414 flow [2023-08-25 04:09:33,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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) [2023-08-25 04:09:33,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:33,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:33,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:09:33,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:33,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:33,220 INFO L85 PathProgramCache]: Analyzing trace with hash 875629, now seen corresponding path program 1 times [2023-08-25 04:09:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:33,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64808137] [2023-08-25 04:09:33,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:33,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:33,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:33,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64808137] [2023-08-25 04:09:33,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64808137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:33,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:33,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:09:33,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492830660] [2023-08-25 04:09:33,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:33,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:09:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:33,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:09:33,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:09:33,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 240 [2023-08-25 04:09:33,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 94 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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) [2023-08-25 04:09:33,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:33,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 240 [2023-08-25 04:09:33,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:33,838 INFO L124 PetriNetUnfolderBase]: 1032/2219 cut-off events. [2023-08-25 04:09:33,839 INFO L125 PetriNetUnfolderBase]: For 1288/1290 co-relation queries the response was YES. [2023-08-25 04:09:33,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6081 conditions, 2219 events. 1032/2219 cut-off events. For 1288/1290 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12606 event pairs, 475 based on Foata normal form. 0/2049 useless extension candidates. Maximal degree in co-relation 6063. Up to 1944 conditions per place. [2023-08-25 04:09:33,852 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 123 selfloop transitions, 48 changer transitions 0/176 dead transitions. [2023-08-25 04:09:33,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 176 transitions, 1089 flow [2023-08-25 04:09:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:09:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:09:33,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 670 transitions. [2023-08-25 04:09:33,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4652777777777778 [2023-08-25 04:09:33,855 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 670 transitions. [2023-08-25 04:09:33,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 670 transitions. [2023-08-25 04:09:33,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:33,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 670 transitions. [2023-08-25 04:09:33,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.66666666666667) internal successors, (670), 6 states have internal predecessors, (670), 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) [2023-08-25 04:09:33,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:33,859 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:33,859 INFO L175 Difference]: Start difference. First operand has 72 places, 94 transitions, 414 flow. Second operand 6 states and 670 transitions. [2023-08-25 04:09:33,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 176 transitions, 1089 flow [2023-08-25 04:09:33,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 176 transitions, 1089 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:33,865 INFO L231 Difference]: Finished difference. Result has 82 places, 137 transitions, 802 flow [2023-08-25 04:09:33,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=82, PETRI_TRANSITIONS=137} [2023-08-25 04:09:33,868 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 24 predicate places. [2023-08-25 04:09:33,868 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 137 transitions, 802 flow [2023-08-25 04:09:33,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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) [2023-08-25 04:09:33,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:33,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:33,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:09:33,868 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:33,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:33,869 INFO L85 PathProgramCache]: Analyzing trace with hash -594759395, now seen corresponding path program 1 times [2023-08-25 04:09:33,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:33,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061646942] [2023-08-25 04:09:33,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:33,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:34,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:34,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061646942] [2023-08-25 04:09:34,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061646942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:34,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:34,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:09:34,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621676819] [2023-08-25 04:09:34,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:34,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:09:34,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:34,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:09:34,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:09:34,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 240 [2023-08-25 04:09:34,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 137 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:34,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:34,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 240 [2023-08-25 04:09:34,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:34,492 INFO L124 PetriNetUnfolderBase]: 1132/2431 cut-off events. [2023-08-25 04:09:34,492 INFO L125 PetriNetUnfolderBase]: For 2520/2524 co-relation queries the response was YES. [2023-08-25 04:09:34,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7904 conditions, 2431 events. 1132/2431 cut-off events. For 2520/2524 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14205 event pairs, 353 based on Foata normal form. 0/2330 useless extension candidates. Maximal degree in co-relation 7881. Up to 1904 conditions per place. [2023-08-25 04:09:34,505 INFO L140 encePairwiseOnDemand]: 226/240 looper letters, 203 selfloop transitions, 75 changer transitions 12/296 dead transitions. [2023-08-25 04:09:34,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 296 transitions, 2034 flow [2023-08-25 04:09:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:09:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:09:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 727 transitions. [2023-08-25 04:09:34,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5048611111111111 [2023-08-25 04:09:34,508 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 727 transitions. [2023-08-25 04:09:34,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 727 transitions. [2023-08-25 04:09:34,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:34,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 727 transitions. [2023-08-25 04:09:34,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2023-08-25 04:09:34,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:34,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:34,511 INFO L175 Difference]: Start difference. First operand has 82 places, 137 transitions, 802 flow. Second operand 6 states and 727 transitions. [2023-08-25 04:09:34,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 296 transitions, 2034 flow [2023-08-25 04:09:34,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 296 transitions, 2016 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:34,523 INFO L231 Difference]: Finished difference. Result has 92 places, 207 transitions, 1560 flow [2023-08-25 04:09:34,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1560, PETRI_PLACES=92, PETRI_TRANSITIONS=207} [2023-08-25 04:09:34,523 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 34 predicate places. [2023-08-25 04:09:34,523 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 207 transitions, 1560 flow [2023-08-25 04:09:34,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:34,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:34,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:34,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:09:34,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:34,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash -302095287, now seen corresponding path program 1 times [2023-08-25 04:09:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425033748] [2023-08-25 04:09:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:34,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:34,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:34,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425033748] [2023-08-25 04:09:34,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425033748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:34,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:34,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:09:34,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807098395] [2023-08-25 04:09:34,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:34,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:09:34,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:34,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:09:34,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:09:34,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 240 [2023-08-25 04:09:34,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 207 transitions, 1560 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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) [2023-08-25 04:09:34,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:34,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 240 [2023-08-25 04:09:34,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:34,659 INFO L124 PetriNetUnfolderBase]: 98/396 cut-off events. [2023-08-25 04:09:34,659 INFO L125 PetriNetUnfolderBase]: For 615/647 co-relation queries the response was YES. [2023-08-25 04:09:34,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 396 events. 98/396 cut-off events. For 615/647 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1831 event pairs, 3 based on Foata normal form. 17/411 useless extension candidates. Maximal degree in co-relation 1267. Up to 112 conditions per place. [2023-08-25 04:09:34,662 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 28 selfloop transitions, 5 changer transitions 1/117 dead transitions. [2023-08-25 04:09:34,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 117 transitions, 868 flow [2023-08-25 04:09:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:09:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:09:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2023-08-25 04:09:34,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49583333333333335 [2023-08-25 04:09:34,663 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 476 transitions. [2023-08-25 04:09:34,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 476 transitions. [2023-08-25 04:09:34,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:34,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 476 transitions. [2023-08-25 04:09:34,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-08-25 04:09:34,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-08-25 04:09:34,666 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-08-25 04:09:34,666 INFO L175 Difference]: Start difference. First operand has 92 places, 207 transitions, 1560 flow. Second operand 4 states and 476 transitions. [2023-08-25 04:09:34,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 117 transitions, 868 flow [2023-08-25 04:09:34,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 117 transitions, 734 flow, removed 58 selfloop flow, removed 8 redundant places. [2023-08-25 04:09:34,671 INFO L231 Difference]: Finished difference. Result has 85 places, 116 transitions, 672 flow [2023-08-25 04:09:34,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=672, PETRI_PLACES=85, PETRI_TRANSITIONS=116} [2023-08-25 04:09:34,672 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2023-08-25 04:09:34,672 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 116 transitions, 672 flow [2023-08-25 04:09:34,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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) [2023-08-25 04:09:34,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:34,672 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] [2023-08-25 04:09:34,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:09:34,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:34,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:34,673 INFO L85 PathProgramCache]: Analyzing trace with hash -649931810, now seen corresponding path program 1 times [2023-08-25 04:09:34,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:34,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114533323] [2023-08-25 04:09:34,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:34,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:34,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:34,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114533323] [2023-08-25 04:09:34,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114533323] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:34,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:34,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:34,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563945036] [2023-08-25 04:09:34,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:34,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:34,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:34,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:34,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:34,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 240 [2023-08-25 04:09:34,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 116 transitions, 672 flow. Second operand has 11 states, 11 states have (on average 82.36363636363636) internal successors, (906), 11 states have internal predecessors, (906), 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) [2023-08-25 04:09:34,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:34,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 240 [2023-08-25 04:09:34,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:35,256 INFO L124 PetriNetUnfolderBase]: 300/727 cut-off events. [2023-08-25 04:09:35,256 INFO L125 PetriNetUnfolderBase]: For 962/962 co-relation queries the response was YES. [2023-08-25 04:09:35,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 727 events. 300/727 cut-off events. For 962/962 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3096 event pairs, 49 based on Foata normal form. 11/724 useless extension candidates. Maximal degree in co-relation 2478. Up to 529 conditions per place. [2023-08-25 04:09:35,260 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 132 selfloop transitions, 32 changer transitions 0/166 dead transitions. [2023-08-25 04:09:35,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 166 transitions, 1277 flow [2023-08-25 04:09:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 04:09:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 04:09:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 810 transitions. [2023-08-25 04:09:35,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375 [2023-08-25 04:09:35,262 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 810 transitions. [2023-08-25 04:09:35,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 810 transitions. [2023-08-25 04:09:35,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:35,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 810 transitions. [2023-08-25 04:09:35,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 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) [2023-08-25 04:09:35,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-25 04:09:35,266 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-25 04:09:35,266 INFO L175 Difference]: Start difference. First operand has 85 places, 116 transitions, 672 flow. Second operand 9 states and 810 transitions. [2023-08-25 04:09:35,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 166 transitions, 1277 flow [2023-08-25 04:09:35,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 166 transitions, 1262 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:09:35,272 INFO L231 Difference]: Finished difference. Result has 88 places, 115 transitions, 719 flow [2023-08-25 04:09:35,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=719, PETRI_PLACES=88, PETRI_TRANSITIONS=115} [2023-08-25 04:09:35,273 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 30 predicate places. [2023-08-25 04:09:35,273 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 115 transitions, 719 flow [2023-08-25 04:09:35,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.36363636363636) internal successors, (906), 11 states have internal predecessors, (906), 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) [2023-08-25 04:09:35,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:35,273 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] [2023-08-25 04:09:35,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:09:35,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:35,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:35,274 INFO L85 PathProgramCache]: Analyzing trace with hash -93809320, now seen corresponding path program 1 times [2023-08-25 04:09:35,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:35,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659718386] [2023-08-25 04:09:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:35,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:35,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:35,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659718386] [2023-08-25 04:09:35,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659718386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:35,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:35,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:35,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671955016] [2023-08-25 04:09:35,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:35,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:35,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:35,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:35,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:35,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 04:09:35,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 115 transitions, 719 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:35,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:35,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 04:09:35,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:36,121 INFO L124 PetriNetUnfolderBase]: 326/828 cut-off events. [2023-08-25 04:09:36,121 INFO L125 PetriNetUnfolderBase]: For 786/786 co-relation queries the response was YES. [2023-08-25 04:09:36,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2924 conditions, 828 events. 326/828 cut-off events. For 786/786 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3846 event pairs, 58 based on Foata normal form. 21/832 useless extension candidates. Maximal degree in co-relation 2898. Up to 426 conditions per place. [2023-08-25 04:09:36,125 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 174 selfloop transitions, 50 changer transitions 15/241 dead transitions. [2023-08-25 04:09:36,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 241 transitions, 1638 flow [2023-08-25 04:09:36,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 04:09:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 04:09:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 936 transitions. [2023-08-25 04:09:36,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-25 04:09:36,128 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 936 transitions. [2023-08-25 04:09:36,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 936 transitions. [2023-08-25 04:09:36,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:36,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 936 transitions. [2023-08-25 04:09:36,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 104.0) internal successors, (936), 9 states have internal predecessors, (936), 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) [2023-08-25 04:09:36,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-25 04:09:36,132 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-25 04:09:36,132 INFO L175 Difference]: Start difference. First operand has 88 places, 115 transitions, 719 flow. Second operand 9 states and 936 transitions. [2023-08-25 04:09:36,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 241 transitions, 1638 flow [2023-08-25 04:09:36,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 241 transitions, 1534 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 04:09:36,139 INFO L231 Difference]: Finished difference. Result has 91 places, 125 transitions, 910 flow [2023-08-25 04:09:36,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=910, PETRI_PLACES=91, PETRI_TRANSITIONS=125} [2023-08-25 04:09:36,140 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 33 predicate places. [2023-08-25 04:09:36,140 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 125 transitions, 910 flow [2023-08-25 04:09:36,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:36,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:36,140 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] [2023-08-25 04:09:36,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:09:36,141 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:36,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1566552804, now seen corresponding path program 2 times [2023-08-25 04:09:36,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:36,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902856680] [2023-08-25 04:09:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:36,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:36,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:36,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902856680] [2023-08-25 04:09:36,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902856680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:36,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:36,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:36,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403900756] [2023-08-25 04:09:36,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:36,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:36,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:36,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:36,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 04:09:36,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 125 transitions, 910 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:36,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:36,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 04:09:36,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:36,851 INFO L124 PetriNetUnfolderBase]: 453/1089 cut-off events. [2023-08-25 04:09:36,851 INFO L125 PetriNetUnfolderBase]: For 1877/1877 co-relation queries the response was YES. [2023-08-25 04:09:36,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 1089 events. 453/1089 cut-off events. For 1877/1877 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5412 event pairs, 27 based on Foata normal form. 26/1094 useless extension candidates. Maximal degree in co-relation 4120. Up to 431 conditions per place. [2023-08-25 04:09:36,857 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 241 selfloop transitions, 35 changer transitions 12/290 dead transitions. [2023-08-25 04:09:36,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 290 transitions, 2234 flow [2023-08-25 04:09:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 04:09:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 04:09:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 999 transitions. [2023-08-25 04:09:36,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41625 [2023-08-25 04:09:36,860 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 999 transitions. [2023-08-25 04:09:36,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 999 transitions. [2023-08-25 04:09:36,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:36,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 999 transitions. [2023-08-25 04:09:36,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 99.9) internal successors, (999), 10 states have internal predecessors, (999), 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) [2023-08-25 04:09:36,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:36,865 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:36,865 INFO L175 Difference]: Start difference. First operand has 91 places, 125 transitions, 910 flow. Second operand 10 states and 999 transitions. [2023-08-25 04:09:36,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 290 transitions, 2234 flow [2023-08-25 04:09:36,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 290 transitions, 2178 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:09:36,875 INFO L231 Difference]: Finished difference. Result has 100 places, 148 transitions, 1200 flow [2023-08-25 04:09:36,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1200, PETRI_PLACES=100, PETRI_TRANSITIONS=148} [2023-08-25 04:09:36,876 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 42 predicate places. [2023-08-25 04:09:36,876 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 148 transitions, 1200 flow [2023-08-25 04:09:36,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:36,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:36,877 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] [2023-08-25 04:09:36,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 04:09:36,878 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:36,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1601145110, now seen corresponding path program 3 times [2023-08-25 04:09:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:36,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187000606] [2023-08-25 04:09:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:37,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:37,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187000606] [2023-08-25 04:09:37,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187000606] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:37,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:37,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760505510] [2023-08-25 04:09:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:37,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:37,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 04:09:37,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 148 transitions, 1200 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:37,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:37,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 04:09:37,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:37,927 INFO L124 PetriNetUnfolderBase]: 512/1267 cut-off events. [2023-08-25 04:09:37,928 INFO L125 PetriNetUnfolderBase]: For 4287/4287 co-relation queries the response was YES. [2023-08-25 04:09:37,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5543 conditions, 1267 events. 512/1267 cut-off events. For 4287/4287 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6777 event pairs, 82 based on Foata normal form. 26/1268 useless extension candidates. Maximal degree in co-relation 5508. Up to 598 conditions per place. [2023-08-25 04:09:37,936 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 232 selfloop transitions, 63 changer transitions 18/315 dead transitions. [2023-08-25 04:09:37,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 315 transitions, 2504 flow [2023-08-25 04:09:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 04:09:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 04:09:37,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1047 transitions. [2023-08-25 04:09:37,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43625 [2023-08-25 04:09:37,939 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1047 transitions. [2023-08-25 04:09:37,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1047 transitions. [2023-08-25 04:09:37,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:37,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1047 transitions. [2023-08-25 04:09:37,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.7) internal successors, (1047), 10 states have internal predecessors, (1047), 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) [2023-08-25 04:09:37,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:37,944 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:37,944 INFO L175 Difference]: Start difference. First operand has 100 places, 148 transitions, 1200 flow. Second operand 10 states and 1047 transitions. [2023-08-25 04:09:37,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 315 transitions, 2504 flow [2023-08-25 04:09:37,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 315 transitions, 2494 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 04:09:37,961 INFO L231 Difference]: Finished difference. Result has 111 places, 168 transitions, 1674 flow [2023-08-25 04:09:37,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1193, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1674, PETRI_PLACES=111, PETRI_TRANSITIONS=168} [2023-08-25 04:09:37,962 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 53 predicate places. [2023-08-25 04:09:37,962 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 168 transitions, 1674 flow [2023-08-25 04:09:37,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:37,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:37,963 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] [2023-08-25 04:09:37,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 04:09:37,963 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:37,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:37,963 INFO L85 PathProgramCache]: Analyzing trace with hash 892125632, now seen corresponding path program 4 times [2023-08-25 04:09:37,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:37,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356222692] [2023-08-25 04:09:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:38,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:38,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356222692] [2023-08-25 04:09:38,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356222692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743877092] [2023-08-25 04:09:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:38,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:38,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 04:09:38,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 168 transitions, 1674 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:38,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:38,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 04:09:38,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:39,026 INFO L124 PetriNetUnfolderBase]: 604/1515 cut-off events. [2023-08-25 04:09:39,027 INFO L125 PetriNetUnfolderBase]: For 7972/7972 co-relation queries the response was YES. [2023-08-25 04:09:39,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 1515 events. 604/1515 cut-off events. For 7972/7972 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8724 event pairs, 70 based on Foata normal form. 26/1511 useless extension candidates. Maximal degree in co-relation 7263. Up to 419 conditions per place. [2023-08-25 04:09:39,038 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 287 selfloop transitions, 80 changer transitions 15/384 dead transitions. [2023-08-25 04:09:39,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 384 transitions, 3660 flow [2023-08-25 04:09:39,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 04:09:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 04:09:39,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1050 transitions. [2023-08-25 04:09:39,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2023-08-25 04:09:39,040 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1050 transitions. [2023-08-25 04:09:39,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1050 transitions. [2023-08-25 04:09:39,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:39,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1050 transitions. [2023-08-25 04:09:39,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2023-08-25 04:09:39,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:39,045 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:39,045 INFO L175 Difference]: Start difference. First operand has 111 places, 168 transitions, 1674 flow. Second operand 10 states and 1050 transitions. [2023-08-25 04:09:39,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 384 transitions, 3660 flow [2023-08-25 04:09:39,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 384 transitions, 3601 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-08-25 04:09:39,077 INFO L231 Difference]: Finished difference. Result has 121 places, 206 transitions, 2471 flow [2023-08-25 04:09:39,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1622, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2471, PETRI_PLACES=121, PETRI_TRANSITIONS=206} [2023-08-25 04:09:39,078 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 63 predicate places. [2023-08-25 04:09:39,078 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 206 transitions, 2471 flow [2023-08-25 04:09:39,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:39,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:39,078 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] [2023-08-25 04:09:39,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:09:39,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:39,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:39,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1629046162, now seen corresponding path program 5 times [2023-08-25 04:09:39,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:39,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084406597] [2023-08-25 04:09:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:39,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084406597] [2023-08-25 04:09:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084406597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:39,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183583896] [2023-08-25 04:09:39,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:39,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:39,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:39,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 04:09:39,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 206 transitions, 2471 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:39,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:39,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 04:09:39,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:40,246 INFO L124 PetriNetUnfolderBase]: 577/1521 cut-off events. [2023-08-25 04:09:40,246 INFO L125 PetriNetUnfolderBase]: For 11144/11144 co-relation queries the response was YES. [2023-08-25 04:09:40,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7938 conditions, 1521 events. 577/1521 cut-off events. For 11144/11144 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9090 event pairs, 49 based on Foata normal form. 26/1516 useless extension candidates. Maximal degree in co-relation 7892. Up to 581 conditions per place. [2023-08-25 04:09:40,262 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 271 selfloop transitions, 94 changer transitions 18/385 dead transitions. [2023-08-25 04:09:40,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 385 transitions, 4100 flow [2023-08-25 04:09:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 04:09:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 04:09:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1048 transitions. [2023-08-25 04:09:40,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43666666666666665 [2023-08-25 04:09:40,264 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1048 transitions. [2023-08-25 04:09:40,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1048 transitions. [2023-08-25 04:09:40,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:40,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1048 transitions. [2023-08-25 04:09:40,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.8) internal successors, (1048), 10 states have internal predecessors, (1048), 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) [2023-08-25 04:09:40,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:40,271 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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) [2023-08-25 04:09:40,271 INFO L175 Difference]: Start difference. First operand has 121 places, 206 transitions, 2471 flow. Second operand 10 states and 1048 transitions. [2023-08-25 04:09:40,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 385 transitions, 4100 flow [2023-08-25 04:09:40,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 385 transitions, 4006 flow, removed 28 selfloop flow, removed 5 redundant places. [2023-08-25 04:09:40,313 INFO L231 Difference]: Finished difference. Result has 128 places, 223 transitions, 2999 flow [2023-08-25 04:09:40,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2369, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2999, PETRI_PLACES=128, PETRI_TRANSITIONS=223} [2023-08-25 04:09:40,315 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 70 predicate places. [2023-08-25 04:09:40,315 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 223 transitions, 2999 flow [2023-08-25 04:09:40,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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) [2023-08-25 04:09:40,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:40,316 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] [2023-08-25 04:09:40,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:09:40,316 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:40,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash -380955823, now seen corresponding path program 1 times [2023-08-25 04:09:40,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885240395] [2023-08-25 04:09:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:40,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:40,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:40,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885240395] [2023-08-25 04:09:40,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885240395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:40,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:40,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:09:40,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431018270] [2023-08-25 04:09:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:40,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:09:40,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:09:40,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:09:40,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 240 [2023-08-25 04:09:40,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 223 transitions, 2999 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 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) [2023-08-25 04:09:40,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:40,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 240 [2023-08-25 04:09:40,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:40,767 INFO L124 PetriNetUnfolderBase]: 595/1585 cut-off events. [2023-08-25 04:09:40,767 INFO L125 PetriNetUnfolderBase]: For 12678/12684 co-relation queries the response was YES. [2023-08-25 04:09:40,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8927 conditions, 1585 events. 595/1585 cut-off events. For 12678/12684 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9627 event pairs, 198 based on Foata normal form. 0/1563 useless extension candidates. Maximal degree in co-relation 8879. Up to 1394 conditions per place. [2023-08-25 04:09:40,779 INFO L140 encePairwiseOnDemand]: 229/240 looper letters, 138 selfloop transitions, 48 changer transitions 113/304 dead transitions. [2023-08-25 04:09:40,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 304 transitions, 4754 flow [2023-08-25 04:09:40,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:09:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:09:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2023-08-25 04:09:40,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4326388888888889 [2023-08-25 04:09:40,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 623 transitions. [2023-08-25 04:09:40,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 623 transitions. [2023-08-25 04:09:40,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:40,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 623 transitions. [2023-08-25 04:09:40,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 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) [2023-08-25 04:09:40,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:40,786 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-08-25 04:09:40,786 INFO L175 Difference]: Start difference. First operand has 128 places, 223 transitions, 2999 flow. Second operand 6 states and 623 transitions. [2023-08-25 04:09:40,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 304 transitions, 4754 flow [2023-08-25 04:09:40,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 304 transitions, 4532 flow, removed 54 selfloop flow, removed 5 redundant places. [2023-08-25 04:09:40,832 INFO L231 Difference]: Finished difference. Result has 133 places, 191 transitions, 2332 flow [2023-08-25 04:09:40,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2856, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2332, PETRI_PLACES=133, PETRI_TRANSITIONS=191} [2023-08-25 04:09:40,832 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 75 predicate places. [2023-08-25 04:09:40,833 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 191 transitions, 2332 flow [2023-08-25 04:09:40,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 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) [2023-08-25 04:09:40,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:40,833 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] [2023-08-25 04:09:40,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 04:09:40,833 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:40,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1335794140, now seen corresponding path program 1 times [2023-08-25 04:09:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:40,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088745497] [2023-08-25 04:09:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:40,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:41,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:41,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:41,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088745497] [2023-08-25 04:09:41,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088745497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:41,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:41,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 04:09:41,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029133441] [2023-08-25 04:09:41,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:41,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 04:09:41,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:41,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 04:09:41,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-25 04:09:41,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 240 [2023-08-25 04:09:41,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 191 transitions, 2332 flow. Second operand has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 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) [2023-08-25 04:09:41,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:41,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 240 [2023-08-25 04:09:41,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:41,451 INFO L124 PetriNetUnfolderBase]: 190/765 cut-off events. [2023-08-25 04:09:41,451 INFO L125 PetriNetUnfolderBase]: For 5380/5435 co-relation queries the response was YES. [2023-08-25 04:09:41,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4050 conditions, 765 events. 190/765 cut-off events. For 5380/5435 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4559 event pairs, 5 based on Foata normal form. 11/773 useless extension candidates. Maximal degree in co-relation 4000. Up to 225 conditions per place. [2023-08-25 04:09:41,456 INFO L140 encePairwiseOnDemand]: 226/240 looper letters, 85 selfloop transitions, 17 changer transitions 12/205 dead transitions. [2023-08-25 04:09:41,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 205 transitions, 2589 flow [2023-08-25 04:09:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 04:09:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 04:09:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1138 transitions. [2023-08-25 04:09:41,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3161111111111111 [2023-08-25 04:09:41,459 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1138 transitions. [2023-08-25 04:09:41,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1138 transitions. [2023-08-25 04:09:41,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:41,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1138 transitions. [2023-08-25 04:09:41,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.86666666666666) internal successors, (1138), 15 states have internal predecessors, (1138), 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) [2023-08-25 04:09:41,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 240.0) internal successors, (3840), 16 states have internal predecessors, (3840), 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) [2023-08-25 04:09:41,466 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 240.0) internal successors, (3840), 16 states have internal predecessors, (3840), 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) [2023-08-25 04:09:41,466 INFO L175 Difference]: Start difference. First operand has 133 places, 191 transitions, 2332 flow. Second operand 15 states and 1138 transitions. [2023-08-25 04:09:41,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 205 transitions, 2589 flow [2023-08-25 04:09:41,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 205 transitions, 2232 flow, removed 82 selfloop flow, removed 8 redundant places. [2023-08-25 04:09:41,506 INFO L231 Difference]: Finished difference. Result has 136 places, 185 transitions, 1980 flow [2023-08-25 04:09:41,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1971, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1980, PETRI_PLACES=136, PETRI_TRANSITIONS=185} [2023-08-25 04:09:41,507 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 78 predicate places. [2023-08-25 04:09:41,507 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 185 transitions, 1980 flow [2023-08-25 04:09:41,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 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) [2023-08-25 04:09:41,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:41,508 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] [2023-08-25 04:09:41,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 04:09:41,508 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 04:09:41,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:41,508 INFO L85 PathProgramCache]: Analyzing trace with hash -47180046, now seen corresponding path program 1 times [2023-08-25 04:09:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:41,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717569383] [2023-08-25 04:09:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:41,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:41,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717569383] [2023-08-25 04:09:41,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717569383] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:41,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:41,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 04:09:41,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228270645] [2023-08-25 04:09:41,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:41,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 04:09:41,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:41,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 04:09:41,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 04:09:41,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 240 [2023-08-25 04:09:41,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 185 transitions, 1980 flow. Second operand has 11 states, 11 states have (on average 83.54545454545455) internal successors, (919), 11 states have internal predecessors, (919), 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) [2023-08-25 04:09:41,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:41,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 240 [2023-08-25 04:09:41,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:42,112 INFO L124 PetriNetUnfolderBase]: 362/958 cut-off events. [2023-08-25 04:09:42,113 INFO L125 PetriNetUnfolderBase]: For 7139/7139 co-relation queries the response was YES. [2023-08-25 04:09:42,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5147 conditions, 958 events. 362/958 cut-off events. For 7139/7139 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4904 event pairs, 129 based on Foata normal form. 22/980 useless extension candidates. Maximal degree in co-relation 5100. Up to 705 conditions per place. [2023-08-25 04:09:42,118 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 0 selfloop transitions, 0 changer transitions 243/243 dead transitions. [2023-08-25 04:09:42,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 243 transitions, 3190 flow [2023-08-25 04:09:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 04:09:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 04:09:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 791 transitions. [2023-08-25 04:09:42,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3662037037037037 [2023-08-25 04:09:42,120 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 791 transitions. [2023-08-25 04:09:42,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 791 transitions. [2023-08-25 04:09:42,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:42,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 791 transitions. [2023-08-25 04:09:42,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.88888888888889) internal successors, (791), 9 states have internal predecessors, (791), 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) [2023-08-25 04:09:42,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-25 04:09:42,125 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-25 04:09:42,125 INFO L175 Difference]: Start difference. First operand has 136 places, 185 transitions, 1980 flow. Second operand 9 states and 791 transitions. [2023-08-25 04:09:42,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 243 transitions, 3190 flow [2023-08-25 04:09:42,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 243 transitions, 2975 flow, removed 15 selfloop flow, removed 19 redundant places. [2023-08-25 04:09:42,147 INFO L231 Difference]: Finished difference. Result has 119 places, 0 transitions, 0 flow [2023-08-25 04:09:42,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1823, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=119, PETRI_TRANSITIONS=0} [2023-08-25 04:09:42,148 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 61 predicate places. [2023-08-25 04:09:42,148 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 0 transitions, 0 flow [2023-08-25 04:09:42,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 83.54545454545455) internal successors, (919), 11 states have internal predecessors, (919), 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) [2023-08-25 04:09:42,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-25 04:09:42,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (9 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-08-25 04:09:42,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-25 04:09:42,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 04:09:42,156 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:09:42,164 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 04:09:42,165 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 04:09:42,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:09:42 BasicIcfg [2023-08-25 04:09:42,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 04:09:42,167 INFO L158 Benchmark]: Toolchain (without parser) took 15156.11ms. Allocated memory was 329.3MB in the beginning and 614.5MB in the end (delta: 285.2MB). Free memory was 302.6MB in the beginning and 324.4MB in the end (delta: -21.8MB). Peak memory consumption was 265.5MB. Max. memory is 16.0GB. [2023-08-25 04:09:42,167 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 329.3MB. Free memory is still 306.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 04:09:42,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.95ms. Allocated memory is still 329.3MB. Free memory was 302.6MB in the beginning and 282.0MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 04:09:42,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.90ms. Allocated memory is still 329.3MB. Free memory was 282.0MB in the beginning and 280.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 04:09:42,167 INFO L158 Benchmark]: Boogie Preprocessor took 27.61ms. Allocated memory is still 329.3MB. Free memory was 280.0MB in the beginning and 277.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 04:09:42,168 INFO L158 Benchmark]: RCFGBuilder took 440.98ms. Allocated memory is still 329.3MB. Free memory was 277.9MB in the beginning and 258.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 04:09:42,168 INFO L158 Benchmark]: TraceAbstraction took 14251.90ms. Allocated memory was 329.3MB in the beginning and 614.5MB in the end (delta: 285.2MB). Free memory was 258.0MB in the beginning and 324.4MB in the end (delta: -66.4MB). Peak memory consumption was 219.3MB. Max. memory is 16.0GB. [2023-08-25 04:09:42,169 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 329.3MB. Free memory is still 306.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 393.95ms. Allocated memory is still 329.3MB. Free memory was 302.6MB in the beginning and 282.0MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.90ms. Allocated memory is still 329.3MB. Free memory was 282.0MB in the beginning and 280.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.61ms. Allocated memory is still 329.3MB. Free memory was 280.0MB in the beginning and 277.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 440.98ms. Allocated memory is still 329.3MB. Free memory was 277.9MB in the beginning and 258.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 14251.90ms. Allocated memory was 329.3MB in the beginning and 614.5MB in the end (delta: 285.2MB). Free memory was 258.0MB in the beginning and 324.4MB in the end (delta: -66.4MB). Peak memory consumption was 219.3MB. 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: 3.1s, 132 PlacesBefore, 58 PlacesAfterwards, 138 TransitionsBefore, 62 TransitionsAfterwards, 4636 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 92 TotalNumberOfCompositions, 24858 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5224, independent: 4502, independent conditional: 0, independent unconditional: 4502, dependent: 722, dependent conditional: 0, dependent unconditional: 722, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2161, independent: 2061, independent conditional: 0, independent unconditional: 2061, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5224, independent: 2441, independent conditional: 0, independent unconditional: 2441, dependent: 622, dependent conditional: 0, dependent unconditional: 622, unknown: 2161, unknown conditional: 0, unknown unconditional: 2161] , Statistics on independence cache: Total cache size (in pairs): 341, Positive cache size: 274, Positive conditional cache size: 0, Positive unconditional cache size: 274, Negative cache size: 67, Negative conditional cache size: 0, Negative unconditional cache size: 67, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 12 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: 14.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1416 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1416 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 601 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5836 IncrementalHoareTripleChecker+Invalid, 6437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 601 mSolverCounterUnsat, 178 mSDtfsCounter, 5836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2999occurred in iteration=12, InterpolantAutomatonStates: 121, 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, 3.5s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 3702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 04:09:42,185 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...