/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/weaver/chl-simpl-str-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:10:17,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:10:18,040 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 05:10:18,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:10:18,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:10:18,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:10:18,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:10:18,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:10:18,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:10:18,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:10:18,064 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:10:18,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:10:18,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:10:18,065 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:10:18,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:10:18,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:10:18,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:10:18,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:10:18,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:10:18,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:10:18,067 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:10:18,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:10:18,068 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:10:18,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:10:18,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:10:18,069 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:10:18,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:10:18,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:10:18,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:10:18,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:10:18,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:10:18,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:10:18,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:10:18,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:10:18,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:10:18,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:10:18,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:10:18,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:10:18,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:10:18,426 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:10:18,427 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:10:18,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2023-08-25 05:10:19,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:10:19,902 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:10:19,902 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2023-08-25 05:10:19,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9f30de24/c963b00a04484419b9f2d17637b2d39c/FLAGd3854cfab [2023-08-25 05:10:19,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9f30de24/c963b00a04484419b9f2d17637b2d39c [2023-08-25 05:10:19,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:10:19,925 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:10:19,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:10:19,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:10:19,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:10:19,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:10:19" (1/1) ... [2023-08-25 05:10:19,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d70ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:19, skipping insertion in model container [2023-08-25 05:10:19,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:10:19" (1/1) ... [2023-08-25 05:10:19,947 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:10:20,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:10:20,112 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:10:20,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:10:20,147 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:10:20,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20 WrapperNode [2023-08-25 05:10:20,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:10:20,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:10:20,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:10:20,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:10:20,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,192 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 270 [2023-08-25 05:10:20,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:10:20,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:10:20,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:10:20,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:10:20,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:10:20,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:10:20,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:10:20,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:10:20,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (1/1) ... [2023-08-25 05:10:20,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:10:20,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:10:20,262 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 05:10:20,274 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 05:10:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:10:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:10:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:10:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:10:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:10:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:10:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:10:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:10:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:10:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:10:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:10:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:10:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:10:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:10:20,295 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 05:10:20,399 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:10:20,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:10:20,814 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:10:20,823 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:10:20,823 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 05:10:20,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:10:20 BoogieIcfgContainer [2023-08-25 05:10:20,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:10:20,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:10:20,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:10:20,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:10:20,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:10:19" (1/3) ... [2023-08-25 05:10:20,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404021c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:10:20, skipping insertion in model container [2023-08-25 05:10:20,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:10:20" (2/3) ... [2023-08-25 05:10:20,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404021c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:10:20, skipping insertion in model container [2023-08-25 05:10:20,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:10:20" (3/3) ... [2023-08-25 05:10:20,834 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2023-08-25 05:10:20,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:10:20,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 05:10:20,848 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:10:20,951 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 05:10:20,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 330 transitions, 684 flow [2023-08-25 05:10:21,150 INFO L124 PetriNetUnfolderBase]: 15/327 cut-off events. [2023-08-25 05:10:21,150 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:10:21,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 327 events. 15/327 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 728 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-25 05:10:21,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 330 transitions, 684 flow [2023-08-25 05:10:21,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 316 transitions, 650 flow [2023-08-25 05:10:21,177 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:10:21,189 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 316 transitions, 650 flow [2023-08-25 05:10:21,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 316 transitions, 650 flow [2023-08-25 05:10:21,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 316 transitions, 650 flow [2023-08-25 05:10:21,276 INFO L124 PetriNetUnfolderBase]: 15/316 cut-off events. [2023-08-25 05:10:21,277 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:10:21,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 316 events. 15/316 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 726 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-25 05:10:21,294 INFO L119 LiptonReduction]: Number of co-enabled transitions 25272 [2023-08-25 05:10:28,661 INFO L134 LiptonReduction]: Checked pairs total: 83271 [2023-08-25 05:10:28,661 INFO L136 LiptonReduction]: Total number of compositions: 324 [2023-08-25 05:10:28,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:10:28,677 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;@22725614, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:10:28,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-08-25 05:10:28,679 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:10:28,679 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:10:28,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:10:28,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:28,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:10:28,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:28,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1231, now seen corresponding path program 1 times [2023-08-25 05:10:28,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:28,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282084168] [2023-08-25 05:10:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:28,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:28,771 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 05:10:28,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:28,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282084168] [2023-08-25 05:10:28,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282084168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:28,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:28,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:10:28,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098984595] [2023-08-25 05:10:28,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:28,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:10:28,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:28,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:10:28,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:10:28,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 654 [2023-08-25 05:10:28,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 186 flow. Second operand has 2 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 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 05:10:28,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:28,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 654 [2023-08-25 05:10:28,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:29,066 INFO L124 PetriNetUnfolderBase]: 1661/2692 cut-off events. [2023-08-25 05:10:29,067 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2023-08-25 05:10:29,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5090 conditions, 2692 events. 1661/2692 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 16502 event pairs, 1125 based on Foata normal form. 39/2027 useless extension candidates. Maximal degree in co-relation 4500. Up to 2265 conditions per place. [2023-08-25 05:10:29,091 INFO L140 encePairwiseOnDemand]: 638/654 looper letters, 34 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2023-08-25 05:10:29,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 222 flow [2023-08-25 05:10:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:10:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:10:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 680 transitions. [2023-08-25 05:10:29,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5198776758409785 [2023-08-25 05:10:29,106 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 680 transitions. [2023-08-25 05:10:29,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 680 transitions. [2023-08-25 05:10:29,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:29,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 680 transitions. [2023-08-25 05:10:29,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 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 05:10:29,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 654.0) internal successors, (1962), 3 states have internal predecessors, (1962), 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 05:10:29,121 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 654.0) internal successors, (1962), 3 states have internal predecessors, (1962), 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 05:10:29,122 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 186 flow. Second operand 2 states and 680 transitions. [2023-08-25 05:10:29,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 222 flow [2023-08-25 05:10:29,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 210 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 05:10:29,141 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 142 flow [2023-08-25 05:10:29,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2023-08-25 05:10:29,147 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -20 predicate places. [2023-08-25 05:10:29,147 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 142 flow [2023-08-25 05:10:29,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 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 05:10:29,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:29,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 05:10:29,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:10:29,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:29,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:29,156 INFO L85 PathProgramCache]: Analyzing trace with hash 37963321, now seen corresponding path program 1 times [2023-08-25 05:10:29,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:29,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384446549] [2023-08-25 05:10:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:29,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:29,244 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 05:10:29,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:29,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384446549] [2023-08-25 05:10:29,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384446549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:29,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:29,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:29,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309103784] [2023-08-25 05:10:29,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:29,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:29,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:29,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:29,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-25 05:10:29,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 05:10:29,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:29,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-25 05:10:29,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:29,635 INFO L124 PetriNetUnfolderBase]: 2453/4611 cut-off events. [2023-08-25 05:10:29,635 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 05:10:29,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8031 conditions, 4611 events. 2453/4611 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 34724 event pairs, 581 based on Foata normal form. 0/3628 useless extension candidates. Maximal degree in co-relation 8028. Up to 3326 conditions per place. [2023-08-25 05:10:29,667 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 49 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-08-25 05:10:29,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 270 flow [2023-08-25 05:10:29,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 971 transitions. [2023-08-25 05:10:29,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4949031600407747 [2023-08-25 05:10:29,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 971 transitions. [2023-08-25 05:10:29,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 971 transitions. [2023-08-25 05:10:29,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:29,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 971 transitions. [2023-08-25 05:10:29,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 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 05:10:29,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:29,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:29,681 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 142 flow. Second operand 3 states and 971 transitions. [2023-08-25 05:10:29,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 270 flow [2023-08-25 05:10:29,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:29,685 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 152 flow [2023-08-25 05:10:29,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-25 05:10:29,686 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-25 05:10:29,686 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 152 flow [2023-08-25 05:10:29,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 05:10:29,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:29,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 05:10:29,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:10:29,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:29,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:29,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2123045524, now seen corresponding path program 1 times [2023-08-25 05:10:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:29,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713131906] [2023-08-25 05:10:29,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:29,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:29,776 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 05:10:29,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:29,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713131906] [2023-08-25 05:10:29,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713131906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:29,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:29,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:29,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366594104] [2023-08-25 05:10:29,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:29,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:29,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:29,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:29,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:29,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 654 [2023-08-25 05:10:29,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 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 05:10:29,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:29,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 654 [2023-08-25 05:10:29,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:30,060 INFO L124 PetriNetUnfolderBase]: 2051/3738 cut-off events. [2023-08-25 05:10:30,061 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 05:10:30,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6615 conditions, 3738 events. 2051/3738 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 26544 event pairs, 330 based on Foata normal form. 0/3032 useless extension candidates. Maximal degree in co-relation 6611. Up to 2726 conditions per place. [2023-08-25 05:10:30,089 INFO L140 encePairwiseOnDemand]: 648/654 looper letters, 47 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2023-08-25 05:10:30,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 278 flow [2023-08-25 05:10:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:30,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 962 transitions. [2023-08-25 05:10:30,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49031600407747195 [2023-08-25 05:10:30,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 962 transitions. [2023-08-25 05:10:30,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 962 transitions. [2023-08-25 05:10:30,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:30,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 962 transitions. [2023-08-25 05:10:30,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 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 05:10:30,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:30,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:30,100 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 152 flow. Second operand 3 states and 962 transitions. [2023-08-25 05:10:30,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 278 flow [2023-08-25 05:10:30,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:30,102 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 167 flow [2023-08-25 05:10:30,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-25 05:10:30,104 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-25 05:10:30,104 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 167 flow [2023-08-25 05:10:30,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 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 05:10:30,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:30,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:30,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:10:30,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:30,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1389915257, now seen corresponding path program 1 times [2023-08-25 05:10:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:30,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773757543] [2023-08-25 05:10:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:30,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:30,159 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 05:10:30,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:30,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773757543] [2023-08-25 05:10:30,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773757543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:30,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:30,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:30,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469773535] [2023-08-25 05:10:30,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:30,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:30,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:30,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 654 [2023-08-25 05:10:30,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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 05:10:30,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:30,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 654 [2023-08-25 05:10:30,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:30,465 INFO L124 PetriNetUnfolderBase]: 1976/3149 cut-off events. [2023-08-25 05:10:30,465 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-25 05:10:30,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6183 conditions, 3149 events. 1976/3149 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 19377 event pairs, 949 based on Foata normal form. 0/2308 useless extension candidates. Maximal degree in co-relation 6178. Up to 2165 conditions per place. [2023-08-25 05:10:30,491 INFO L140 encePairwiseOnDemand]: 649/654 looper letters, 51 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2023-08-25 05:10:30,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 86 transitions, 315 flow [2023-08-25 05:10:30,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2023-08-25 05:10:30,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4969418960244648 [2023-08-25 05:10:30,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 975 transitions. [2023-08-25 05:10:30,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 975 transitions. [2023-08-25 05:10:30,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:30,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 975 transitions. [2023-08-25 05:10:30,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 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 05:10:30,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:30,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:30,501 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 167 flow. Second operand 3 states and 975 transitions. [2023-08-25 05:10:30,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 86 transitions, 315 flow [2023-08-25 05:10:30,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 86 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:30,505 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 173 flow [2023-08-25 05:10:30,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2023-08-25 05:10:30,507 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -18 predicate places. [2023-08-25 05:10:30,507 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 173 flow [2023-08-25 05:10:30,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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 05:10:30,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:30,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:30,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:10:30,509 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:30,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash -806300217, now seen corresponding path program 1 times [2023-08-25 05:10:30,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:30,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588951455] [2023-08-25 05:10:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:30,567 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 05:10:30,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:30,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588951455] [2023-08-25 05:10:30,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588951455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:30,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:30,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:30,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257663209] [2023-08-25 05:10:30,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:30,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:30,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 654 [2023-08-25 05:10:30,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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 05:10:30,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:30,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 654 [2023-08-25 05:10:30,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:30,991 INFO L124 PetriNetUnfolderBase]: 3726/6314 cut-off events. [2023-08-25 05:10:30,992 INFO L125 PetriNetUnfolderBase]: For 926/926 co-relation queries the response was YES. [2023-08-25 05:10:31,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12680 conditions, 6314 events. 3726/6314 cut-off events. For 926/926 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 43543 event pairs, 627 based on Foata normal form. 0/5028 useless extension candidates. Maximal degree in co-relation 12674. Up to 4492 conditions per place. [2023-08-25 05:10:31,031 INFO L140 encePairwiseOnDemand]: 646/654 looper letters, 59 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-25 05:10:31,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 85 transitions, 355 flow [2023-08-25 05:10:31,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2023-08-25 05:10:31,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4908256880733945 [2023-08-25 05:10:31,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2023-08-25 05:10:31,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2023-08-25 05:10:31,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:31,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2023-08-25 05:10:31,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 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 05:10:31,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:31,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:31,084 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 173 flow. Second operand 3 states and 963 transitions. [2023-08-25 05:10:31,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 85 transitions, 355 flow [2023-08-25 05:10:31,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 85 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:31,099 INFO L231 Difference]: Finished difference. Result has 66 places, 67 transitions, 185 flow [2023-08-25 05:10:31,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=66, PETRI_TRANSITIONS=67} [2023-08-25 05:10:31,102 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -21 predicate places. [2023-08-25 05:10:31,102 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 67 transitions, 185 flow [2023-08-25 05:10:31,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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 05:10:31,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:31,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:31,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:10:31,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:31,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:31,103 INFO L85 PathProgramCache]: Analyzing trace with hash 137565989, now seen corresponding path program 1 times [2023-08-25 05:10:31,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:31,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207623269] [2023-08-25 05:10:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:31,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:31,157 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 05:10:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207623269] [2023-08-25 05:10:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207623269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321814542] [2023-08-25 05:10:31,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:31,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:31,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:31,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-25 05:10:31,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 67 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 05:10:31,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:31,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-25 05:10:31,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:31,625 INFO L124 PetriNetUnfolderBase]: 4176/6550 cut-off events. [2023-08-25 05:10:31,625 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2023-08-25 05:10:31,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12953 conditions, 6550 events. 4176/6550 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 42472 event pairs, 1067 based on Foata normal form. 0/5169 useless extension candidates. Maximal degree in co-relation 12947. Up to 3414 conditions per place. [2023-08-25 05:10:31,671 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 70 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2023-08-25 05:10:31,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 406 flow [2023-08-25 05:10:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 988 transitions. [2023-08-25 05:10:31,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5035677879714577 [2023-08-25 05:10:31,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 988 transitions. [2023-08-25 05:10:31,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 988 transitions. [2023-08-25 05:10:31,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:31,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 988 transitions. [2023-08-25 05:10:31,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 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 05:10:31,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:31,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:31,681 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 185 flow. Second operand 3 states and 988 transitions. [2023-08-25 05:10:31,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 406 flow [2023-08-25 05:10:31,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 98 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:31,684 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 195 flow [2023-08-25 05:10:31,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2023-08-25 05:10:31,685 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -20 predicate places. [2023-08-25 05:10:31,685 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 195 flow [2023-08-25 05:10:31,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 05:10:31,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:31,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:31,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:10:31,686 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:31,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:31,687 INFO L85 PathProgramCache]: Analyzing trace with hash 774509254, now seen corresponding path program 1 times [2023-08-25 05:10:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:31,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190657350] [2023-08-25 05:10:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:31,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:31,711 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 05:10:31,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:31,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190657350] [2023-08-25 05:10:31,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190657350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:31,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:31,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:31,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270122540] [2023-08-25 05:10:31,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:31,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:31,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:31,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:31,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:31,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 654 [2023-08-25 05:10:31,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 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 05:10:31,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:31,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 654 [2023-08-25 05:10:31,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:32,087 INFO L124 PetriNetUnfolderBase]: 3248/4986 cut-off events. [2023-08-25 05:10:32,088 INFO L125 PetriNetUnfolderBase]: For 345/352 co-relation queries the response was YES. [2023-08-25 05:10:32,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 4986 events. 3248/4986 cut-off events. For 345/352 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 30289 event pairs, 1532 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 10458. Up to 3380 conditions per place. [2023-08-25 05:10:32,125 INFO L140 encePairwiseOnDemand]: 649/654 looper letters, 54 selfloop transitions, 4 changer transitions 0/87 dead transitions. [2023-08-25 05:10:32,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 87 transitions, 363 flow [2023-08-25 05:10:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2023-08-25 05:10:32,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4923547400611621 [2023-08-25 05:10:32,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2023-08-25 05:10:32,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2023-08-25 05:10:32,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:32,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2023-08-25 05:10:32,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 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 05:10:32,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:32,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:32,136 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 195 flow. Second operand 3 states and 966 transitions. [2023-08-25 05:10:32,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 87 transitions, 363 flow [2023-08-25 05:10:32,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 87 transitions, 363 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:32,139 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 201 flow [2023-08-25 05:10:32,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2023-08-25 05:10:32,141 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-25 05:10:32,141 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 201 flow [2023-08-25 05:10:32,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 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 05:10:32,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:32,143 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:32,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:10:32,144 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:32,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:32,145 INFO L85 PathProgramCache]: Analyzing trace with hash -943046039, now seen corresponding path program 1 times [2023-08-25 05:10:32,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:32,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139100778] [2023-08-25 05:10:32,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:32,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:32,187 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 05:10:32,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:32,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139100778] [2023-08-25 05:10:32,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139100778] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:32,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:32,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:32,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513095476] [2023-08-25 05:10:32,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:32,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:32,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:32,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:32,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-25 05:10:32,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 05:10:32,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:32,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-25 05:10:32,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:32,805 INFO L124 PetriNetUnfolderBase]: 5207/8101 cut-off events. [2023-08-25 05:10:32,805 INFO L125 PetriNetUnfolderBase]: For 1753/1760 co-relation queries the response was YES. [2023-08-25 05:10:32,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18041 conditions, 8101 events. 5207/8101 cut-off events. For 1753/1760 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 53691 event pairs, 1774 based on Foata normal form. 0/6560 useless extension candidates. Maximal degree in co-relation 18033. Up to 3881 conditions per place. [2023-08-25 05:10:32,859 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 71 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-08-25 05:10:32,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 97 transitions, 431 flow [2023-08-25 05:10:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:32,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2023-08-25 05:10:32,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040774719673802 [2023-08-25 05:10:32,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2023-08-25 05:10:32,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2023-08-25 05:10:32,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:32,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2023-08-25 05:10:32,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 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 05:10:32,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:32,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:32,870 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 201 flow. Second operand 3 states and 989 transitions. [2023-08-25 05:10:32,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 97 transitions, 431 flow [2023-08-25 05:10:32,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 97 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:32,877 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 203 flow [2023-08-25 05:10:32,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2023-08-25 05:10:32,879 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -20 predicate places. [2023-08-25 05:10:32,879 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 203 flow [2023-08-25 05:10:32,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 05:10:32,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:32,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:32,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:10:32,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:32,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:32,881 INFO L85 PathProgramCache]: Analyzing trace with hash 506988217, now seen corresponding path program 1 times [2023-08-25 05:10:32,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:32,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698652085] [2023-08-25 05:10:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:32,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:32,913 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 05:10:32,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:32,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698652085] [2023-08-25 05:10:32,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698652085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:32,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:32,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:32,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413832809] [2023-08-25 05:10:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:32,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:32,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:32,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-25 05:10:32,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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 05:10:32,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:32,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-25 05:10:32,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:33,457 INFO L124 PetriNetUnfolderBase]: 5369/8094 cut-off events. [2023-08-25 05:10:33,457 INFO L125 PetriNetUnfolderBase]: For 602/609 co-relation queries the response was YES. [2023-08-25 05:10:33,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17259 conditions, 8094 events. 5369/8094 cut-off events. For 602/609 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 50308 event pairs, 1931 based on Foata normal form. 0/6429 useless extension candidates. Maximal degree in co-relation 17251. Up to 4024 conditions per place. [2023-08-25 05:10:33,508 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 70 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-08-25 05:10:33,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 97 transitions, 428 flow [2023-08-25 05:10:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 986 transitions. [2023-08-25 05:10:33,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025484199796126 [2023-08-25 05:10:33,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 986 transitions. [2023-08-25 05:10:33,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 986 transitions. [2023-08-25 05:10:33,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:33,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 986 transitions. [2023-08-25 05:10:33,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 05:10:33,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:33,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:33,517 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 203 flow. Second operand 3 states and 986 transitions. [2023-08-25 05:10:33,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 97 transitions, 428 flow [2023-08-25 05:10:33,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 97 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:33,519 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 213 flow [2023-08-25 05:10:33,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2023-08-25 05:10:33,520 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-25 05:10:33,520 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 213 flow [2023-08-25 05:10:33,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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 05:10:33,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:33,521 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 05:10:33,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:10:33,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:33,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1550678633, now seen corresponding path program 1 times [2023-08-25 05:10:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:33,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232951769] [2023-08-25 05:10:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:33,566 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 05:10:33,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:33,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232951769] [2023-08-25 05:10:33,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232951769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:33,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:33,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:33,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221592222] [2023-08-25 05:10:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:33,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:33,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:33,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 654 [2023-08-25 05:10:33,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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 05:10:33,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:33,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 654 [2023-08-25 05:10:33,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:34,133 INFO L124 PetriNetUnfolderBase]: 4694/8067 cut-off events. [2023-08-25 05:10:34,134 INFO L125 PetriNetUnfolderBase]: For 585/592 co-relation queries the response was YES. [2023-08-25 05:10:34,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17438 conditions, 8067 events. 4694/8067 cut-off events. For 585/592 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 60166 event pairs, 1367 based on Foata normal form. 1/6869 useless extension candidates. Maximal degree in co-relation 17429. Up to 4838 conditions per place. [2023-08-25 05:10:34,188 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 61 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-08-25 05:10:34,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 92 transitions, 403 flow [2023-08-25 05:10:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 986 transitions. [2023-08-25 05:10:34,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025484199796126 [2023-08-25 05:10:34,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 986 transitions. [2023-08-25 05:10:34,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 986 transitions. [2023-08-25 05:10:34,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:34,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 986 transitions. [2023-08-25 05:10:34,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 05:10:34,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:34,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:34,197 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 213 flow. Second operand 3 states and 986 transitions. [2023-08-25 05:10:34,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 92 transitions, 403 flow [2023-08-25 05:10:34,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 92 transitions, 403 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:34,201 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 233 flow [2023-08-25 05:10:34,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2023-08-25 05:10:34,201 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -15 predicate places. [2023-08-25 05:10:34,201 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 233 flow [2023-08-25 05:10:34,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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 05:10:34,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:34,202 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 05:10:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:10:34,202 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:34,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1510029663, now seen corresponding path program 2 times [2023-08-25 05:10:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617039619] [2023-08-25 05:10:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:34,242 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 05:10:34,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:34,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617039619] [2023-08-25 05:10:34,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617039619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:34,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:34,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:34,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912384680] [2023-08-25 05:10:34,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:34,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:34,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:34,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:34,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:34,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 654 [2023-08-25 05:10:34,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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 05:10:34,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:34,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 654 [2023-08-25 05:10:34,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:34,768 INFO L124 PetriNetUnfolderBase]: 4680/7699 cut-off events. [2023-08-25 05:10:34,768 INFO L125 PetriNetUnfolderBase]: For 2161/2252 co-relation queries the response was YES. [2023-08-25 05:10:34,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17667 conditions, 7699 events. 4680/7699 cut-off events. For 2161/2252 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 54863 event pairs, 2752 based on Foata normal form. 155/6826 useless extension candidates. Maximal degree in co-relation 17656. Up to 5213 conditions per place. [2023-08-25 05:10:34,816 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 62 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2023-08-25 05:10:34,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 93 transitions, 427 flow [2023-08-25 05:10:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2023-08-25 05:10:34,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020387359836901 [2023-08-25 05:10:34,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 985 transitions. [2023-08-25 05:10:34,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 985 transitions. [2023-08-25 05:10:34,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:34,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 985 transitions. [2023-08-25 05:10:34,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 05:10:34,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:34,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:34,825 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 233 flow. Second operand 3 states and 985 transitions. [2023-08-25 05:10:34,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 93 transitions, 427 flow [2023-08-25 05:10:34,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 93 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:34,835 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 255 flow [2023-08-25 05:10:34,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2023-08-25 05:10:34,835 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -12 predicate places. [2023-08-25 05:10:34,835 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 255 flow [2023-08-25 05:10:34,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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 05:10:34,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:34,836 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 05:10:34,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:10:34,837 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:34,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:34,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1756805114, now seen corresponding path program 1 times [2023-08-25 05:10:34,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:34,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542491945] [2023-08-25 05:10:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:34,923 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 05:10:34,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:34,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542491945] [2023-08-25 05:10:34,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542491945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:34,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:34,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:10:34,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080438916] [2023-08-25 05:10:34,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:34,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:34,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:34,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 654 [2023-08-25 05:10:34,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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 05:10:34,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:34,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 654 [2023-08-25 05:10:34,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:35,589 INFO L124 PetriNetUnfolderBase]: 4944/8098 cut-off events. [2023-08-25 05:10:35,589 INFO L125 PetriNetUnfolderBase]: For 3173/3336 co-relation queries the response was YES. [2023-08-25 05:10:35,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19293 conditions, 8098 events. 4944/8098 cut-off events. For 3173/3336 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 58255 event pairs, 3391 based on Foata normal form. 27/7022 useless extension candidates. Maximal degree in co-relation 19281. Up to 6468 conditions per place. [2023-08-25 05:10:35,642 INFO L140 encePairwiseOnDemand]: 652/654 looper letters, 38 selfloop transitions, 0 changer transitions 23/90 dead transitions. [2023-08-25 05:10:35,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 90 transitions, 425 flow [2023-08-25 05:10:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 992 transitions. [2023-08-25 05:10:35,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056065239551478 [2023-08-25 05:10:35,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 992 transitions. [2023-08-25 05:10:35,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 992 transitions. [2023-08-25 05:10:35,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:35,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 992 transitions. [2023-08-25 05:10:35,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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 05:10:35,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:35,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:35,651 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 255 flow. Second operand 3 states and 992 transitions. [2023-08-25 05:10:35,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 90 transitions, 425 flow [2023-08-25 05:10:35,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 419 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:35,657 INFO L231 Difference]: Finished difference. Result has 77 places, 67 transitions, 236 flow [2023-08-25 05:10:35,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=77, PETRI_TRANSITIONS=67} [2023-08-25 05:10:35,658 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -10 predicate places. [2023-08-25 05:10:35,658 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 67 transitions, 236 flow [2023-08-25 05:10:35,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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 05:10:35,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:35,659 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 05:10:35,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 05:10:35,659 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:35,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash 401859307, now seen corresponding path program 1 times [2023-08-25 05:10:35,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:35,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660492980] [2023-08-25 05:10:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:35,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:35,691 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 05:10:35,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:35,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660492980] [2023-08-25 05:10:35,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660492980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:35,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:35,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:35,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133548514] [2023-08-25 05:10:35,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:35,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:35,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:35,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:35,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:35,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-25 05:10:35,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 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 05:10:35,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:35,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-25 05:10:35,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:36,336 INFO L124 PetriNetUnfolderBase]: 4696/7840 cut-off events. [2023-08-25 05:10:36,336 INFO L125 PetriNetUnfolderBase]: For 1512/1550 co-relation queries the response was YES. [2023-08-25 05:10:36,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18321 conditions, 7840 events. 4696/7840 cut-off events. For 1512/1550 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 57561 event pairs, 2418 based on Foata normal form. 0/6731 useless extension candidates. Maximal degree in co-relation 18308. Up to 3994 conditions per place. [2023-08-25 05:10:36,380 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 65 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2023-08-25 05:10:36,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 97 transitions, 466 flow [2023-08-25 05:10:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:36,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2023-08-25 05:10:36,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040774719673802 [2023-08-25 05:10:36,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2023-08-25 05:10:36,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2023-08-25 05:10:36,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:36,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2023-08-25 05:10:36,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 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 05:10:36,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:36,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:36,389 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 236 flow. Second operand 3 states and 989 transitions. [2023-08-25 05:10:36,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 97 transitions, 466 flow [2023-08-25 05:10:36,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 462 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:36,392 INFO L231 Difference]: Finished difference. Result has 79 places, 70 transitions, 269 flow [2023-08-25 05:10:36,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=79, PETRI_TRANSITIONS=70} [2023-08-25 05:10:36,393 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -8 predicate places. [2023-08-25 05:10:36,393 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 269 flow [2023-08-25 05:10:36,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 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 05:10:36,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:36,393 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 05:10:36,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 05:10:36,393 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:36,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1784264311, now seen corresponding path program 2 times [2023-08-25 05:10:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:36,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888539780] [2023-08-25 05:10:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:36,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:36,429 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 05:10:36,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:36,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888539780] [2023-08-25 05:10:36,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888539780] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:36,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:36,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:36,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258380051] [2023-08-25 05:10:36,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:36,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:36,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:36,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:36,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:36,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-25 05:10:36,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 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 05:10:36,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:36,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-25 05:10:36,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:36,802 INFO L124 PetriNetUnfolderBase]: 3107/5402 cut-off events. [2023-08-25 05:10:36,802 INFO L125 PetriNetUnfolderBase]: For 3311/3319 co-relation queries the response was YES. [2023-08-25 05:10:36,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13280 conditions, 5402 events. 3107/5402 cut-off events. For 3311/3319 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 38374 event pairs, 1845 based on Foata normal form. 250/5129 useless extension candidates. Maximal degree in co-relation 13266. Up to 3035 conditions per place. [2023-08-25 05:10:36,831 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 61 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2023-08-25 05:10:36,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 93 transitions, 469 flow [2023-08-25 05:10:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 984 transitions. [2023-08-25 05:10:36,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5015290519877675 [2023-08-25 05:10:36,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 984 transitions. [2023-08-25 05:10:36,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 984 transitions. [2023-08-25 05:10:36,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:36,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 984 transitions. [2023-08-25 05:10:36,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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 05:10:36,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:36,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:36,840 INFO L175 Difference]: Start difference. First operand has 79 places, 70 transitions, 269 flow. Second operand 3 states and 984 transitions. [2023-08-25 05:10:36,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 93 transitions, 469 flow [2023-08-25 05:10:36,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 93 transitions, 466 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:36,845 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 307 flow [2023-08-25 05:10:36,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2023-08-25 05:10:36,846 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -5 predicate places. [2023-08-25 05:10:36,846 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 307 flow [2023-08-25 05:10:36,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 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 05:10:36,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:36,846 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 05:10:36,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 05:10:36,847 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:36,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1195877037, now seen corresponding path program 1 times [2023-08-25 05:10:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:36,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492651394] [2023-08-25 05:10:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:36,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:36,951 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 05:10:36,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:36,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492651394] [2023-08-25 05:10:36,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492651394] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:36,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:36,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:36,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725353808] [2023-08-25 05:10:36,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:36,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:10:36,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:36,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:10:36,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:10:36,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 654 [2023-08-25 05:10:36,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 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 05:10:36,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:36,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 654 [2023-08-25 05:10:36,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:37,454 INFO L124 PetriNetUnfolderBase]: 3310/6018 cut-off events. [2023-08-25 05:10:37,454 INFO L125 PetriNetUnfolderBase]: For 3240/3278 co-relation queries the response was YES. [2023-08-25 05:10:37,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15086 conditions, 6018 events. 3310/6018 cut-off events. For 3240/3278 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 45577 event pairs, 1023 based on Foata normal form. 13/5502 useless extension candidates. Maximal degree in co-relation 15071. Up to 3351 conditions per place. [2023-08-25 05:10:37,487 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 66 selfloop transitions, 2 changer transitions 17/114 dead transitions. [2023-08-25 05:10:37,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 114 transitions, 614 flow [2023-08-25 05:10:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:10:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:10:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1293 transitions. [2023-08-25 05:10:37,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49426605504587157 [2023-08-25 05:10:37,491 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1293 transitions. [2023-08-25 05:10:37,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1293 transitions. [2023-08-25 05:10:37,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:37,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1293 transitions. [2023-08-25 05:10:37,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.25) internal successors, (1293), 4 states have internal predecessors, (1293), 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 05:10:37,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:37,498 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:37,498 INFO L175 Difference]: Start difference. First operand has 82 places, 73 transitions, 307 flow. Second operand 4 states and 1293 transitions. [2023-08-25 05:10:37,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 114 transitions, 614 flow [2023-08-25 05:10:37,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 114 transitions, 599 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:37,503 INFO L231 Difference]: Finished difference. Result has 86 places, 73 transitions, 308 flow [2023-08-25 05:10:37,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=86, PETRI_TRANSITIONS=73} [2023-08-25 05:10:37,504 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -1 predicate places. [2023-08-25 05:10:37,504 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 73 transitions, 308 flow [2023-08-25 05:10:37,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 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 05:10:37,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:37,505 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 05:10:37,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 05:10:37,505 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:37,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:37,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1628289649, now seen corresponding path program 2 times [2023-08-25 05:10:37,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:37,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6692248] [2023-08-25 05:10:37,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:37,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:37,616 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 05:10:37,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:37,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6692248] [2023-08-25 05:10:37,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6692248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:37,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:37,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:37,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009679672] [2023-08-25 05:10:37,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:37,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:10:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:37,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:10:37,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:10:37,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 654 [2023-08-25 05:10:37,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 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 05:10:37,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:37,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 654 [2023-08-25 05:10:37,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:38,045 INFO L124 PetriNetUnfolderBase]: 2983/5372 cut-off events. [2023-08-25 05:10:38,045 INFO L125 PetriNetUnfolderBase]: For 3558/3628 co-relation queries the response was YES. [2023-08-25 05:10:38,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13680 conditions, 5372 events. 2983/5372 cut-off events. For 3558/3628 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 39414 event pairs, 1599 based on Foata normal form. 2/4909 useless extension candidates. Maximal degree in co-relation 13663. Up to 3136 conditions per place. [2023-08-25 05:10:38,065 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 67 selfloop transitions, 2 changer transitions 18/116 dead transitions. [2023-08-25 05:10:38,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 116 transitions, 634 flow [2023-08-25 05:10:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:10:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:10:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1293 transitions. [2023-08-25 05:10:38,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49426605504587157 [2023-08-25 05:10:38,069 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1293 transitions. [2023-08-25 05:10:38,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1293 transitions. [2023-08-25 05:10:38,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:38,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1293 transitions. [2023-08-25 05:10:38,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.25) internal successors, (1293), 4 states have internal predecessors, (1293), 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 05:10:38,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:38,076 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:38,076 INFO L175 Difference]: Start difference. First operand has 86 places, 73 transitions, 308 flow. Second operand 4 states and 1293 transitions. [2023-08-25 05:10:38,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 116 transitions, 634 flow [2023-08-25 05:10:38,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 116 transitions, 627 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:38,081 INFO L231 Difference]: Finished difference. Result has 89 places, 75 transitions, 331 flow [2023-08-25 05:10:38,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2023-08-25 05:10:38,081 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 2 predicate places. [2023-08-25 05:10:38,081 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 331 flow [2023-08-25 05:10:38,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 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 05:10:38,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:38,082 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 05:10:38,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 05:10:38,082 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:38,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1376508836, now seen corresponding path program 1 times [2023-08-25 05:10:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:38,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193407566] [2023-08-25 05:10:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:38,443 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 05:10:38,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:38,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193407566] [2023-08-25 05:10:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193407566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230293035] [2023-08-25 05:10:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:38,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:10:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:10:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:10:38,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 654 [2023-08-25 05:10:38,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 75 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 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 05:10:38,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:38,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 654 [2023-08-25 05:10:38,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:38,826 INFO L124 PetriNetUnfolderBase]: 2739/4684 cut-off events. [2023-08-25 05:10:38,826 INFO L125 PetriNetUnfolderBase]: For 3946/3994 co-relation queries the response was YES. [2023-08-25 05:10:38,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12457 conditions, 4684 events. 2739/4684 cut-off events. For 3946/3994 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 31675 event pairs, 513 based on Foata normal form. 1/4269 useless extension candidates. Maximal degree in co-relation 12439. Up to 2803 conditions per place. [2023-08-25 05:10:38,849 INFO L140 encePairwiseOnDemand]: 646/654 looper letters, 91 selfloop transitions, 9 changer transitions 11/140 dead transitions. [2023-08-25 05:10:38,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 140 transitions, 825 flow [2023-08-25 05:10:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:10:38,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:10:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1593 transitions. [2023-08-25 05:10:38,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4871559633027523 [2023-08-25 05:10:38,853 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1593 transitions. [2023-08-25 05:10:38,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1593 transitions. [2023-08-25 05:10:38,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:38,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1593 transitions. [2023-08-25 05:10:38,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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 05:10:38,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 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 05:10:38,861 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 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 05:10:38,862 INFO L175 Difference]: Start difference. First operand has 89 places, 75 transitions, 331 flow. Second operand 5 states and 1593 transitions. [2023-08-25 05:10:38,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 140 transitions, 825 flow [2023-08-25 05:10:38,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 140 transitions, 804 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:38,868 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 375 flow [2023-08-25 05:10:38,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2023-08-25 05:10:38,869 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2023-08-25 05:10:38,869 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 375 flow [2023-08-25 05:10:38,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 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 05:10:38,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:38,870 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 05:10:38,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 05:10:38,870 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:38,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash -69318334, now seen corresponding path program 2 times [2023-08-25 05:10:38,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:38,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456011376] [2023-08-25 05:10:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:38,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:39,167 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 05:10:39,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:39,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456011376] [2023-08-25 05:10:39,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456011376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:39,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:39,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431521035] [2023-08-25 05:10:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:10:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:10:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:10:39,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 654 [2023-08-25 05:10:39,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 375 flow. Second operand has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 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 05:10:39,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:39,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 654 [2023-08-25 05:10:39,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:39,572 INFO L124 PetriNetUnfolderBase]: 2739/4683 cut-off events. [2023-08-25 05:10:39,572 INFO L125 PetriNetUnfolderBase]: For 4098/4416 co-relation queries the response was YES. [2023-08-25 05:10:39,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13606 conditions, 4683 events. 2739/4683 cut-off events. For 4098/4416 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 31596 event pairs, 495 based on Foata normal form. 107/4500 useless extension candidates. Maximal degree in co-relation 13587. Up to 2844 conditions per place. [2023-08-25 05:10:39,600 INFO L140 encePairwiseOnDemand]: 646/654 looper letters, 68 selfloop transitions, 10 changer transitions 36/143 dead transitions. [2023-08-25 05:10:39,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 143 transitions, 877 flow [2023-08-25 05:10:39,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:10:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:10:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1591 transitions. [2023-08-25 05:10:39,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4865443425076453 [2023-08-25 05:10:39,604 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1591 transitions. [2023-08-25 05:10:39,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1591 transitions. [2023-08-25 05:10:39,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:39,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1591 transitions. [2023-08-25 05:10:39,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 318.2) internal successors, (1591), 5 states have internal predecessors, (1591), 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 05:10:39,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 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 05:10:39,612 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 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 05:10:39,612 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 375 flow. Second operand 5 states and 1591 transitions. [2023-08-25 05:10:39,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 143 transitions, 877 flow [2023-08-25 05:10:39,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 143 transitions, 877 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:10:39,619 INFO L231 Difference]: Finished difference. Result has 98 places, 75 transitions, 354 flow [2023-08-25 05:10:39,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=98, PETRI_TRANSITIONS=75} [2023-08-25 05:10:39,620 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 11 predicate places. [2023-08-25 05:10:39,620 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 75 transitions, 354 flow [2023-08-25 05:10:39,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 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 05:10:39,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:39,620 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] [2023-08-25 05:10:39,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 05:10:39,621 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:39,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:39,621 INFO L85 PathProgramCache]: Analyzing trace with hash -535871653, now seen corresponding path program 1 times [2023-08-25 05:10:39,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:39,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170985381] [2023-08-25 05:10:39,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:39,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:39,795 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 05:10:39,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:39,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170985381] [2023-08-25 05:10:39,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170985381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:39,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:39,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:39,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301450610] [2023-08-25 05:10:39,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:39,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:10:39,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:39,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:10:39,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:10:39,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-25 05:10:39,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 75 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 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 05:10:39,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:39,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-25 05:10:39,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:40,218 INFO L124 PetriNetUnfolderBase]: 2281/4046 cut-off events. [2023-08-25 05:10:40,219 INFO L125 PetriNetUnfolderBase]: For 4173/4361 co-relation queries the response was YES. [2023-08-25 05:10:40,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11766 conditions, 4046 events. 2281/4046 cut-off events. For 4173/4361 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 28158 event pairs, 1263 based on Foata normal form. 39/3805 useless extension candidates. Maximal degree in co-relation 11744. Up to 2601 conditions per place. [2023-08-25 05:10:40,244 INFO L140 encePairwiseOnDemand]: 651/654 looper letters, 70 selfloop transitions, 3 changer transitions 9/111 dead transitions. [2023-08-25 05:10:40,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 111 transitions, 653 flow [2023-08-25 05:10:40,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:10:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:10:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1301 transitions. [2023-08-25 05:10:40,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49732415902140675 [2023-08-25 05:10:40,247 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1301 transitions. [2023-08-25 05:10:40,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1301 transitions. [2023-08-25 05:10:40,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:40,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1301 transitions. [2023-08-25 05:10:40,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 325.25) internal successors, (1301), 4 states have internal predecessors, (1301), 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 05:10:40,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:40,254 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:40,254 INFO L175 Difference]: Start difference. First operand has 98 places, 75 transitions, 354 flow. Second operand 4 states and 1301 transitions. [2023-08-25 05:10:40,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 111 transitions, 653 flow [2023-08-25 05:10:40,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 111 transitions, 626 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-25 05:10:40,260 INFO L231 Difference]: Finished difference. Result has 97 places, 76 transitions, 354 flow [2023-08-25 05:10:40,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=354, PETRI_PLACES=97, PETRI_TRANSITIONS=76} [2023-08-25 05:10:40,260 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2023-08-25 05:10:40,260 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 76 transitions, 354 flow [2023-08-25 05:10:40,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 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 05:10:40,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:40,261 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] [2023-08-25 05:10:40,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 05:10:40,261 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:40,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1727305687, now seen corresponding path program 2 times [2023-08-25 05:10:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:40,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512222933] [2023-08-25 05:10:40,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:40,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:40,607 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 05:10:40,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:40,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512222933] [2023-08-25 05:10:40,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512222933] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:40,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:40,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:40,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056947988] [2023-08-25 05:10:40,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:40,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:10:40,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:40,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:10:40,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:10:40,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-25 05:10:40,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 76 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 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 05:10:40,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:40,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-25 05:10:40,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:41,041 INFO L124 PetriNetUnfolderBase]: 2313/4169 cut-off events. [2023-08-25 05:10:41,041 INFO L125 PetriNetUnfolderBase]: For 3346/3409 co-relation queries the response was YES. [2023-08-25 05:10:41,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12190 conditions, 4169 events. 2313/4169 cut-off events. For 3346/3409 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 29208 event pairs, 1333 based on Foata normal form. 9/3825 useless extension candidates. Maximal degree in co-relation 12169. Up to 2775 conditions per place. [2023-08-25 05:10:41,065 INFO L140 encePairwiseOnDemand]: 651/654 looper letters, 68 selfloop transitions, 4 changer transitions 9/110 dead transitions. [2023-08-25 05:10:41,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 110 transitions, 639 flow [2023-08-25 05:10:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:10:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:10:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2023-08-25 05:10:41,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49655963302752293 [2023-08-25 05:10:41,069 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2023-08-25 05:10:41,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2023-08-25 05:10:41,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:41,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2023-08-25 05:10:41,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 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 05:10:41,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:41,076 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 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 05:10:41,076 INFO L175 Difference]: Start difference. First operand has 97 places, 76 transitions, 354 flow. Second operand 4 states and 1299 transitions. [2023-08-25 05:10:41,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 110 transitions, 639 flow [2023-08-25 05:10:41,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 110 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:41,081 INFO L231 Difference]: Finished difference. Result has 101 places, 77 transitions, 375 flow [2023-08-25 05:10:41,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=375, PETRI_PLACES=101, PETRI_TRANSITIONS=77} [2023-08-25 05:10:41,082 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 14 predicate places. [2023-08-25 05:10:41,082 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 77 transitions, 375 flow [2023-08-25 05:10:41,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 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 05:10:41,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:41,082 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] [2023-08-25 05:10:41,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 05:10:41,083 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:41,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:41,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1937754526, now seen corresponding path program 1 times [2023-08-25 05:10:41,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:41,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904035501] [2023-08-25 05:10:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:41,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:41,146 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 05:10:41,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904035501] [2023-08-25 05:10:41,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904035501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:41,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:41,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:41,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105901766] [2023-08-25 05:10:41,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:41,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:41,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:41,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:41,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 654 [2023-08-25 05:10:41,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 77 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 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 05:10:41,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:41,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 654 [2023-08-25 05:10:41,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:41,625 INFO L124 PetriNetUnfolderBase]: 2254/4427 cut-off events. [2023-08-25 05:10:41,626 INFO L125 PetriNetUnfolderBase]: For 4073/4127 co-relation queries the response was YES. [2023-08-25 05:10:41,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12689 conditions, 4427 events. 2254/4427 cut-off events. For 4073/4127 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 33123 event pairs, 778 based on Foata normal form. 96/4265 useless extension candidates. Maximal degree in co-relation 12666. Up to 2123 conditions per place. [2023-08-25 05:10:41,653 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 74 selfloop transitions, 3 changer transitions 1/107 dead transitions. [2023-08-25 05:10:41,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 107 transitions, 669 flow [2023-08-25 05:10:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2023-08-25 05:10:41,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49745158002038736 [2023-08-25 05:10:41,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2023-08-25 05:10:41,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2023-08-25 05:10:41,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:41,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2023-08-25 05:10:41,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 05:10:41,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:41,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:41,661 INFO L175 Difference]: Start difference. First operand has 101 places, 77 transitions, 375 flow. Second operand 3 states and 976 transitions. [2023-08-25 05:10:41,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 107 transitions, 669 flow [2023-08-25 05:10:41,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 107 transitions, 666 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:41,669 INFO L231 Difference]: Finished difference. Result has 104 places, 80 transitions, 409 flow [2023-08-25 05:10:41,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=104, PETRI_TRANSITIONS=80} [2023-08-25 05:10:41,669 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 17 predicate places. [2023-08-25 05:10:41,669 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 80 transitions, 409 flow [2023-08-25 05:10:41,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 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 05:10:41,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:41,670 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] [2023-08-25 05:10:41,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 05:10:41,670 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:41,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash -609644100, now seen corresponding path program 2 times [2023-08-25 05:10:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:41,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336483545] [2023-08-25 05:10:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:41,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:41,708 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 05:10:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:41,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336483545] [2023-08-25 05:10:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336483545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:41,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:10:41,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60957324] [2023-08-25 05:10:41,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:41,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:10:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:10:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:10:41,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 654 [2023-08-25 05:10:41,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 80 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 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 05:10:41,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:41,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 654 [2023-08-25 05:10:41,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:42,012 INFO L124 PetriNetUnfolderBase]: 1926/3491 cut-off events. [2023-08-25 05:10:42,012 INFO L125 PetriNetUnfolderBase]: For 4167/4305 co-relation queries the response was YES. [2023-08-25 05:10:42,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11039 conditions, 3491 events. 1926/3491 cut-off events. For 4167/4305 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 24046 event pairs, 1027 based on Foata normal form. 96/3273 useless extension candidates. Maximal degree in co-relation 11015. Up to 2101 conditions per place. [2023-08-25 05:10:42,031 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 66 selfloop transitions, 4 changer transitions 6/105 dead transitions. [2023-08-25 05:10:42,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 675 flow [2023-08-25 05:10:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:10:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:10:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2023-08-25 05:10:42,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49745158002038736 [2023-08-25 05:10:42,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2023-08-25 05:10:42,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2023-08-25 05:10:42,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:42,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2023-08-25 05:10:42,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 05:10:42,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:42,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 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 05:10:42,039 INFO L175 Difference]: Start difference. First operand has 104 places, 80 transitions, 409 flow. Second operand 3 states and 976 transitions. [2023-08-25 05:10:42,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 675 flow [2023-08-25 05:10:42,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 105 transitions, 668 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 05:10:42,049 INFO L231 Difference]: Finished difference. Result has 106 places, 80 transitions, 420 flow [2023-08-25 05:10:42,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=106, PETRI_TRANSITIONS=80} [2023-08-25 05:10:42,050 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 19 predicate places. [2023-08-25 05:10:42,050 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 80 transitions, 420 flow [2023-08-25 05:10:42,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 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 05:10:42,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:42,050 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] [2023-08-25 05:10:42,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 05:10:42,051 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:42,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:42,051 INFO L85 PathProgramCache]: Analyzing trace with hash -898530469, now seen corresponding path program 1 times [2023-08-25 05:10:42,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:42,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582001394] [2023-08-25 05:10:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:42,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:42,928 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 05:10:42,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:42,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582001394] [2023-08-25 05:10:42,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582001394] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:42,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:42,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:10:42,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727415086] [2023-08-25 05:10:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:42,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:10:42,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:42,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:10:42,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:10:42,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-25 05:10:42,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 80 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:42,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:42,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-25 05:10:42,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:43,409 INFO L124 PetriNetUnfolderBase]: 2040/3596 cut-off events. [2023-08-25 05:10:43,409 INFO L125 PetriNetUnfolderBase]: For 4919/5153 co-relation queries the response was YES. [2023-08-25 05:10:43,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11521 conditions, 3596 events. 2040/3596 cut-off events. For 4919/5153 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 23367 event pairs, 303 based on Foata normal form. 64/3370 useless extension candidates. Maximal degree in co-relation 11496. Up to 1667 conditions per place. [2023-08-25 05:10:43,437 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 88 selfloop transitions, 10 changer transitions 18/145 dead transitions. [2023-08-25 05:10:43,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 145 transitions, 945 flow [2023-08-25 05:10:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:10:43,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:10:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1871 transitions. [2023-08-25 05:10:43,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.476809378185525 [2023-08-25 05:10:43,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1871 transitions. [2023-08-25 05:10:43,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1871 transitions. [2023-08-25 05:10:43,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:43,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1871 transitions. [2023-08-25 05:10:43,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.8333333333333) internal successors, (1871), 6 states have internal predecessors, (1871), 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 05:10:43,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:43,450 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:43,450 INFO L175 Difference]: Start difference. First operand has 106 places, 80 transitions, 420 flow. Second operand 6 states and 1871 transitions. [2023-08-25 05:10:43,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 145 transitions, 945 flow [2023-08-25 05:10:43,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 145 transitions, 921 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 05:10:43,459 INFO L231 Difference]: Finished difference. Result has 112 places, 84 transitions, 469 flow [2023-08-25 05:10:43,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=469, PETRI_PLACES=112, PETRI_TRANSITIONS=84} [2023-08-25 05:10:43,460 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 25 predicate places. [2023-08-25 05:10:43,460 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 84 transitions, 469 flow [2023-08-25 05:10:43,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:43,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:43,461 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] [2023-08-25 05:10:43,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 05:10:43,461 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:43,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:43,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1865843651, now seen corresponding path program 2 times [2023-08-25 05:10:43,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:43,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397819976] [2023-08-25 05:10:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:43,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:44,121 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 05:10:44,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:44,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397819976] [2023-08-25 05:10:44,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397819976] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:44,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:44,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:10:44,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841713409] [2023-08-25 05:10:44,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:44,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:10:44,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:44,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:10:44,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:10:44,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-25 05:10:44,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 84 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:44,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:44,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-25 05:10:44,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:44,756 INFO L124 PetriNetUnfolderBase]: 1988/3562 cut-off events. [2023-08-25 05:10:44,757 INFO L125 PetriNetUnfolderBase]: For 4746/5100 co-relation queries the response was YES. [2023-08-25 05:10:44,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11911 conditions, 3562 events. 1988/3562 cut-off events. For 4746/5100 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23095 event pairs, 425 based on Foata normal form. 122/3400 useless extension candidates. Maximal degree in co-relation 11884. Up to 1955 conditions per place. [2023-08-25 05:10:44,788 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 95 selfloop transitions, 11 changer transitions 15/150 dead transitions. [2023-08-25 05:10:44,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 150 transitions, 998 flow [2023-08-25 05:10:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:10:44,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:10:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2023-08-25 05:10:44,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47782874617737003 [2023-08-25 05:10:44,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1875 transitions. [2023-08-25 05:10:44,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1875 transitions. [2023-08-25 05:10:44,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:44,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1875 transitions. [2023-08-25 05:10:44,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 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 05:10:44,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:44,800 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:44,800 INFO L175 Difference]: Start difference. First operand has 112 places, 84 transitions, 469 flow. Second operand 6 states and 1875 transitions. [2023-08-25 05:10:44,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 150 transitions, 998 flow [2023-08-25 05:10:44,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 150 transitions, 989 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:44,808 INFO L231 Difference]: Finished difference. Result has 117 places, 85 transitions, 501 flow [2023-08-25 05:10:44,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=117, PETRI_TRANSITIONS=85} [2023-08-25 05:10:44,808 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 30 predicate places. [2023-08-25 05:10:44,808 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 85 transitions, 501 flow [2023-08-25 05:10:44,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:44,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:44,809 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] [2023-08-25 05:10:44,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 05:10:44,809 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:44,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:44,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1723210363, now seen corresponding path program 3 times [2023-08-25 05:10:44,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:44,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115212154] [2023-08-25 05:10:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:44,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:45,659 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 05:10:45,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:45,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115212154] [2023-08-25 05:10:45,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115212154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:45,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:45,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:10:45,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542741670] [2023-08-25 05:10:45,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:45,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:10:45,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:45,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:10:45,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:10:45,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-25 05:10:45,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 85 transitions, 501 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:45,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:45,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-25 05:10:45,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:46,202 INFO L124 PetriNetUnfolderBase]: 2046/3680 cut-off events. [2023-08-25 05:10:46,203 INFO L125 PetriNetUnfolderBase]: For 6559/7011 co-relation queries the response was YES. [2023-08-25 05:10:46,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12656 conditions, 3680 events. 2046/3680 cut-off events. For 6559/7011 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 24043 event pairs, 303 based on Foata normal form. 140/3534 useless extension candidates. Maximal degree in co-relation 12627. Up to 1755 conditions per place. [2023-08-25 05:10:46,228 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 90 selfloop transitions, 11 changer transitions 12/142 dead transitions. [2023-08-25 05:10:46,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 981 flow [2023-08-25 05:10:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:10:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:10:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1869 transitions. [2023-08-25 05:10:46,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47629969418960244 [2023-08-25 05:10:46,232 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1869 transitions. [2023-08-25 05:10:46,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1869 transitions. [2023-08-25 05:10:46,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:46,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1869 transitions. [2023-08-25 05:10:46,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 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 05:10:46,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:46,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:46,239 INFO L175 Difference]: Start difference. First operand has 117 places, 85 transitions, 501 flow. Second operand 6 states and 1869 transitions. [2023-08-25 05:10:46,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 981 flow [2023-08-25 05:10:46,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 965 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:46,248 INFO L231 Difference]: Finished difference. Result has 122 places, 86 transitions, 529 flow [2023-08-25 05:10:46,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=122, PETRI_TRANSITIONS=86} [2023-08-25 05:10:46,248 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 35 predicate places. [2023-08-25 05:10:46,248 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 86 transitions, 529 flow [2023-08-25 05:10:46,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:46,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:46,249 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] [2023-08-25 05:10:46,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 05:10:46,249 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:46,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:46,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1998868127, now seen corresponding path program 4 times [2023-08-25 05:10:46,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:46,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518298337] [2023-08-25 05:10:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:46,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:47,045 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 05:10:47,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:47,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518298337] [2023-08-25 05:10:47,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518298337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:47,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:47,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:10:47,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136469349] [2023-08-25 05:10:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:47,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:10:47,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:10:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:10:47,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-25 05:10:47,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 86 transitions, 529 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:47,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:47,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-25 05:10:47,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:47,606 INFO L124 PetriNetUnfolderBase]: 2008/3612 cut-off events. [2023-08-25 05:10:47,606 INFO L125 PetriNetUnfolderBase]: For 7583/8045 co-relation queries the response was YES. [2023-08-25 05:10:47,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12902 conditions, 3612 events. 2008/3612 cut-off events. For 7583/8045 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23684 event pairs, 407 based on Foata normal form. 118/3444 useless extension candidates. Maximal degree in co-relation 12870. Up to 1975 conditions per place. [2023-08-25 05:10:47,636 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 95 selfloop transitions, 14 changer transitions 11/149 dead transitions. [2023-08-25 05:10:47,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 149 transitions, 1056 flow [2023-08-25 05:10:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:10:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:10:47,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1873 transitions. [2023-08-25 05:10:47,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4773190621814475 [2023-08-25 05:10:47,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1873 transitions. [2023-08-25 05:10:47,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1873 transitions. [2023-08-25 05:10:47,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:47,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1873 transitions. [2023-08-25 05:10:47,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.1666666666667) internal successors, (1873), 6 states have internal predecessors, (1873), 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 05:10:47,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:47,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:47,648 INFO L175 Difference]: Start difference. First operand has 122 places, 86 transitions, 529 flow. Second operand 6 states and 1873 transitions. [2023-08-25 05:10:47,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 149 transitions, 1056 flow [2023-08-25 05:10:47,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 149 transitions, 1034 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 05:10:47,749 INFO L231 Difference]: Finished difference. Result has 126 places, 87 transitions, 563 flow [2023-08-25 05:10:47,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=563, PETRI_PLACES=126, PETRI_TRANSITIONS=87} [2023-08-25 05:10:47,750 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 39 predicate places. [2023-08-25 05:10:47,750 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 87 transitions, 563 flow [2023-08-25 05:10:47,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:47,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:47,751 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] [2023-08-25 05:10:47,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 05:10:47,751 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:47,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash -8221319, now seen corresponding path program 5 times [2023-08-25 05:10:47,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:47,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977828802] [2023-08-25 05:10:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:47,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:48,645 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 05:10:48,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:48,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977828802] [2023-08-25 05:10:48,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977828802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:48,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:48,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:10:48,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623880596] [2023-08-25 05:10:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:48,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:10:48,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:48,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:10:48,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:10:48,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-25 05:10:48,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 87 transitions, 563 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:48,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:48,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-25 05:10:48,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:49,212 INFO L124 PetriNetUnfolderBase]: 1974/3548 cut-off events. [2023-08-25 05:10:49,212 INFO L125 PetriNetUnfolderBase]: For 8908/9328 co-relation queries the response was YES. [2023-08-25 05:10:49,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13024 conditions, 3548 events. 1974/3548 cut-off events. For 8908/9328 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23481 event pairs, 439 based on Foata normal form. 138/3404 useless extension candidates. Maximal degree in co-relation 12990. Up to 2069 conditions per place. [2023-08-25 05:10:49,242 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 83 selfloop transitions, 11 changer transitions 27/150 dead transitions. [2023-08-25 05:10:49,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 150 transitions, 1077 flow [2023-08-25 05:10:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:10:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:10:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1874 transitions. [2023-08-25 05:10:49,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47757390417940876 [2023-08-25 05:10:49,247 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1874 transitions. [2023-08-25 05:10:49,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1874 transitions. [2023-08-25 05:10:49,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:49,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1874 transitions. [2023-08-25 05:10:49,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 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 05:10:49,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:49,255 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:49,255 INFO L175 Difference]: Start difference. First operand has 126 places, 87 transitions, 563 flow. Second operand 6 states and 1874 transitions. [2023-08-25 05:10:49,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 150 transitions, 1077 flow [2023-08-25 05:10:49,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 150 transitions, 1063 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 05:10:49,278 INFO L231 Difference]: Finished difference. Result has 130 places, 86 transitions, 566 flow [2023-08-25 05:10:49,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=130, PETRI_TRANSITIONS=86} [2023-08-25 05:10:49,279 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 43 predicate places. [2023-08-25 05:10:49,279 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 86 transitions, 566 flow [2023-08-25 05:10:49,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:49,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:10:49,280 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] [2023-08-25 05:10:49,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 05:10:49,280 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 05:10:49,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:10:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash 50457693, now seen corresponding path program 6 times [2023-08-25 05:10:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:10:49,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122757532] [2023-08-25 05:10:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:10:49,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:10:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:10:50,003 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 05:10:50,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:10:50,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122757532] [2023-08-25 05:10:50,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122757532] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:10:50,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:10:50,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:10:50,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394407670] [2023-08-25 05:10:50,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:10:50,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:10:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:10:50,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:10:50,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:10:50,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-25 05:10:50,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 86 transitions, 566 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:50,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:10:50,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-25 05:10:50,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:10:50,514 INFO L124 PetriNetUnfolderBase]: 1840/3320 cut-off events. [2023-08-25 05:10:50,514 INFO L125 PetriNetUnfolderBase]: For 9237/9599 co-relation queries the response was YES. [2023-08-25 05:10:50,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12699 conditions, 3320 events. 1840/3320 cut-off events. For 9237/9599 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 21913 event pairs, 373 based on Foata normal form. 116/3154 useless extension candidates. Maximal degree in co-relation 12663. Up to 1817 conditions per place. [2023-08-25 05:10:50,536 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2023-08-25 05:10:50,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 138 transitions, 1021 flow [2023-08-25 05:10:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:10:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:10:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1864 transitions. [2023-08-25 05:10:50,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4750254841997961 [2023-08-25 05:10:50,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1864 transitions. [2023-08-25 05:10:50,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1864 transitions. [2023-08-25 05:10:50,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:10:50,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1864 transitions. [2023-08-25 05:10:50,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 310.6666666666667) internal successors, (1864), 6 states have internal predecessors, (1864), 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 05:10:50,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:50,542 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 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 05:10:50,542 INFO L175 Difference]: Start difference. First operand has 130 places, 86 transitions, 566 flow. Second operand 6 states and 1864 transitions. [2023-08-25 05:10:50,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 138 transitions, 1021 flow [2023-08-25 05:10:50,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 138 transitions, 990 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-25 05:10:50,562 INFO L231 Difference]: Finished difference. Result has 126 places, 0 transitions, 0 flow [2023-08-25 05:10:50,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=126, PETRI_TRANSITIONS=0} [2023-08-25 05:10:50,562 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 39 predicate places. [2023-08-25 05:10:50,562 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 0 transitions, 0 flow [2023-08-25 05:10:50,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 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 05:10:50,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (53 of 54 remaining) [2023-08-25 05:10:50,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2023-08-25 05:10:50,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2023-08-25 05:10:50,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2023-08-25 05:10:50,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2023-08-25 05:10:50,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2023-08-25 05:10:50,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONASSERT (21 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 54 remaining) [2023-08-25 05:10:50,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2023-08-25 05:10:50,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2023-08-25 05:10:50,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2023-08-25 05:10:50,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 05:10:50,571 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:10:50,575 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:10:50,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:10:50,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:10:50 BasicIcfg [2023-08-25 05:10:50,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:10:50,578 INFO L158 Benchmark]: Toolchain (without parser) took 30653.03ms. Allocated memory was 373.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 349.9MB in the beginning and 1.1GB in the end (delta: -791.0MB). Peak memory consumption was 515.4MB. Max. memory is 16.0GB. [2023-08-25 05:10:50,579 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 373.3MB. Free memory was 351.2MB in the beginning and 351.1MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:10:50,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.15ms. Allocated memory is still 373.3MB. Free memory was 349.9MB in the beginning and 338.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 05:10:50,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.51ms. Allocated memory is still 373.3MB. Free memory was 338.2MB in the beginning and 335.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 05:10:50,579 INFO L158 Benchmark]: Boogie Preprocessor took 29.66ms. Allocated memory is still 373.3MB. Free memory was 335.4MB in the beginning and 333.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:10:50,579 INFO L158 Benchmark]: RCFGBuilder took 601.55ms. Allocated memory is still 373.3MB. Free memory was 333.3MB in the beginning and 308.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 05:10:50,580 INFO L158 Benchmark]: TraceAbstraction took 29749.60ms. Allocated memory was 373.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 307.4MB in the beginning and 1.1GB in the end (delta: -833.5MB). Peak memory consumption was 473.5MB. Max. memory is 16.0GB. [2023-08-25 05:10:50,581 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 373.3MB. Free memory was 351.2MB in the beginning and 351.1MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 221.15ms. Allocated memory is still 373.3MB. Free memory was 349.9MB in the beginning and 338.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.51ms. Allocated memory is still 373.3MB. Free memory was 338.2MB in the beginning and 335.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.66ms. Allocated memory is still 373.3MB. Free memory was 335.4MB in the beginning and 333.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 601.55ms. Allocated memory is still 373.3MB. Free memory was 333.3MB in the beginning and 308.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 29749.60ms. Allocated memory was 373.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 307.4MB in the beginning and 1.1GB in the end (delta: -833.5MB). Peak memory consumption was 473.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 311 PlacesBefore, 87 PlacesAfterwards, 316 TransitionsBefore, 84 TransitionsAfterwards, 25272 CoEnabledTransitionPairs, 10 FixpointIterations, 128 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 36 ConcurrentYvCompositions, 8 ChoiceCompositions, 324 TotalNumberOfCompositions, 83271 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44895, independent: 43864, independent conditional: 0, independent unconditional: 43864, dependent: 1031, dependent conditional: 0, dependent unconditional: 1031, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14780, independent: 14696, independent conditional: 0, independent unconditional: 14696, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44895, independent: 29168, independent conditional: 0, independent unconditional: 29168, dependent: 947, dependent conditional: 0, dependent unconditional: 947, unknown: 14780, unknown conditional: 0, unknown unconditional: 14780] , Statistics on independence cache: Total cache size (in pairs): 1082, Positive cache size: 1034, Positive conditional cache size: 0, Positive unconditional cache size: 1034, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 472 locations, 54 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: 29.6s, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 833 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 833 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3248 IncrementalHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 24 mSDtfsCounter, 3248 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=566occurred in iteration=27, InterpolantAutomatonStates: 109, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 665 ConstructedInterpolants, 0 QuantifiedInterpolants, 3292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 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 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 05:10:50,600 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...