/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:36:17,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:36:17,739 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 [2023-08-26 07:36:17,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:36:17,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:36:17,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:36:17,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:36:17,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:36:17,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:36:17,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:36:17,789 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:36:17,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:36:17,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:36:17,790 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:36:17,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:36:17,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:36:17,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:36:17,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:36:17,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:36:17,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:36:17,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:36:17,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:36:17,793 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:36:17,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:36:17,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:36:17,794 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:36:17,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:36:17,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:36:17,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:36:17,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:36:17,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:36:17,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:36:17,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:36:17,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:36:17,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:36:17,797 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:36:18,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:36:18,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:36:18,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:36:18,141 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:36:18,143 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:36:18,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-26 07:36:19,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:36:19,668 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:36:19,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-26 07:36:19,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14406be6a/f4037f303bb74111ba5ca30b2c99cc77/FLAG664afff2c [2023-08-26 07:36:19,704 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14406be6a/f4037f303bb74111ba5ca30b2c99cc77 [2023-08-26 07:36:19,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:36:19,711 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:36:19,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:36:19,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:36:19,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:36:19,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:36:19" (1/1) ... [2023-08-26 07:36:19,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c544ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:19, skipping insertion in model container [2023-08-26 07:36:19,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:36:19" (1/1) ... [2023-08-26 07:36:19,766 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:36:20,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:36:20,100 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:36:20,121 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-26 07:36:20,122 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 07:36:20,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:36:20,169 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:36:20,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20 WrapperNode [2023-08-26 07:36:20,169 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:36:20,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:36:20,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:36:20,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:36:20,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,214 INFO L138 Inliner]: procedures = 162, calls = 47, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 115 [2023-08-26 07:36:20,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:36:20,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:36:20,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:36:20,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:36:20,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:36:20,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:36:20,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:36:20,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:36:20,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (1/1) ... [2023-08-26 07:36:20,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:36:20,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:36:20,270 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) [2023-08-26 07:36:20,309 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 [2023-08-26 07:36:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:36:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:36:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:36:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:36:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:36:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:36:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:36:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:36:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:36:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:36:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:36:20,325 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:36:20,454 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:36:20,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:36:20,794 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:36:20,804 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:36:20,804 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:36:20,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:36:20 BoogieIcfgContainer [2023-08-26 07:36:20,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:36:20,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:36:20,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:36:20,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:36:20,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:36:19" (1/3) ... [2023-08-26 07:36:20,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8e20f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:36:20, skipping insertion in model container [2023-08-26 07:36:20,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:36:20" (2/3) ... [2023-08-26 07:36:20,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8e20f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:36:20, skipping insertion in model container [2023-08-26 07:36:20,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:36:20" (3/3) ... [2023-08-26 07:36:20,816 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-08-26 07:36:20,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:36:20,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-26 07:36:20,832 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:36:20,927 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 07:36:20,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 197 transitions, 402 flow [2023-08-26 07:36:21,047 INFO L124 PetriNetUnfolderBase]: 8/196 cut-off events. [2023-08-26 07:36:21,048 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 07:36:21,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 196 events. 8/196 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-08-26 07:36:21,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 197 transitions, 402 flow [2023-08-26 07:36:21,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 189 transitions, 381 flow [2023-08-26 07:36:21,068 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:36:21,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 189 transitions, 381 flow [2023-08-26 07:36:21,085 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 189 transitions, 381 flow [2023-08-26 07:36:21,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 189 transitions, 381 flow [2023-08-26 07:36:21,141 INFO L124 PetriNetUnfolderBase]: 8/189 cut-off events. [2023-08-26 07:36:21,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:36:21,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 189 events. 8/189 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 260 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-08-26 07:36:21,149 INFO L119 LiptonReduction]: Number of co-enabled transitions 11310 [2023-08-26 07:36:24,696 INFO L134 LiptonReduction]: Checked pairs total: 51261 [2023-08-26 07:36:24,696 INFO L136 LiptonReduction]: Total number of compositions: 143 [2023-08-26 07:36:24,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:36:24,715 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;@4fec6a42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:36:24,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-26 07:36:24,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:36:24,721 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-26 07:36:24,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:36:24,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:24,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 07:36:24,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:24,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1790563924, now seen corresponding path program 1 times [2023-08-26 07:36:24,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:24,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034793217] [2023-08-26 07:36:24,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:24,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:24,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:24,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034793217] [2023-08-26 07:36:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034793217] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:24,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:24,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223265853] [2023-08-26 07:36:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:24,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:24,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:25,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:25,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:25,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 340 [2023-08-26 07:36:25,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:25,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 340 [2023-08-26 07:36:25,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:25,493 INFO L124 PetriNetUnfolderBase]: 1241/3051 cut-off events. [2023-08-26 07:36:25,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:36:25,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5648 conditions, 3051 events. 1241/3051 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 20800 event pairs, 218 based on Foata normal form. 96/2621 useless extension candidates. Maximal degree in co-relation 5639. Up to 1481 conditions per place. [2023-08-26 07:36:25,512 INFO L140 encePairwiseOnDemand]: 318/340 looper letters, 98 selfloop transitions, 10 changer transitions 0/124 dead transitions. [2023-08-26 07:36:25,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 124 transitions, 467 flow [2023-08-26 07:36:25,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:25,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2023-08-26 07:36:25,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6009803921568627 [2023-08-26 07:36:25,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2023-08-26 07:36:25,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2023-08-26 07:36:25,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:25,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2023-08-26 07:36:25,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,549 INFO L175 Difference]: Start difference. First operand has 86 places, 88 transitions, 179 flow. Second operand 3 states and 613 transitions. [2023-08-26 07:36:25,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 124 transitions, 467 flow [2023-08-26 07:36:25,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 124 transitions, 466 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:36:25,555 INFO L231 Difference]: Finished difference. Result has 82 places, 83 transitions, 230 flow [2023-08-26 07:36:25,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=82, PETRI_TRANSITIONS=83} [2023-08-26 07:36:25,559 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2023-08-26 07:36:25,559 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 83 transitions, 230 flow [2023-08-26 07:36:25,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:25,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:25,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:36:25,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:25,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:25,569 INFO L85 PathProgramCache]: Analyzing trace with hash 389244579, now seen corresponding path program 1 times [2023-08-26 07:36:25,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:25,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934192127] [2023-08-26 07:36:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:25,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:25,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:25,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:25,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934192127] [2023-08-26 07:36:25,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934192127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:25,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:25,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:36:25,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777848164] [2023-08-26 07:36:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:25,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:25,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:25,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:25,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:25,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 340 [2023-08-26 07:36:25,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:25,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 340 [2023-08-26 07:36:25,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:25,961 INFO L124 PetriNetUnfolderBase]: 878/2520 cut-off events. [2023-08-26 07:36:25,962 INFO L125 PetriNetUnfolderBase]: For 220/223 co-relation queries the response was YES. [2023-08-26 07:36:25,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4743 conditions, 2520 events. 878/2520 cut-off events. For 220/223 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17996 event pairs, 723 based on Foata normal form. 1/2202 useless extension candidates. Maximal degree in co-relation 4733. Up to 1699 conditions per place. [2023-08-26 07:36:25,975 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 66 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2023-08-26 07:36:25,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 101 transitions, 404 flow [2023-08-26 07:36:25,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2023-08-26 07:36:25,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-26 07:36:25,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2023-08-26 07:36:25,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2023-08-26 07:36:25,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:25,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2023-08-26 07:36:25,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,983 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 230 flow. Second operand 3 states and 595 transitions. [2023-08-26 07:36:25,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 101 transitions, 404 flow [2023-08-26 07:36:25,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:25,988 INFO L231 Difference]: Finished difference. Result has 83 places, 83 transitions, 224 flow [2023-08-26 07:36:25,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=83, PETRI_TRANSITIONS=83} [2023-08-26 07:36:25,989 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2023-08-26 07:36:25,989 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 83 transitions, 224 flow [2023-08-26 07:36:25,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:25,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:25,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:25,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:36:25,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:25,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:25,991 INFO L85 PathProgramCache]: Analyzing trace with hash 807304258, now seen corresponding path program 1 times [2023-08-26 07:36:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:25,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917884472] [2023-08-26 07:36:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:25,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:26,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917884472] [2023-08-26 07:36:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917884472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373599834] [2023-08-26 07:36:26,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:26,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:26,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 340 [2023-08-26 07:36:26,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:26,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 340 [2023-08-26 07:36:26,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:26,395 INFO L124 PetriNetUnfolderBase]: 1236/3194 cut-off events. [2023-08-26 07:36:26,395 INFO L125 PetriNetUnfolderBase]: For 413/416 co-relation queries the response was YES. [2023-08-26 07:36:26,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6474 conditions, 3194 events. 1236/3194 cut-off events. For 413/416 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21842 event pairs, 985 based on Foata normal form. 2/2835 useless extension candidates. Maximal degree in co-relation 6462. Up to 2383 conditions per place. [2023-08-26 07:36:26,410 INFO L140 encePairwiseOnDemand]: 333/340 looper letters, 96 selfloop transitions, 8 changer transitions 0/120 dead transitions. [2023-08-26 07:36:26,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 120 transitions, 542 flow [2023-08-26 07:36:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2023-08-26 07:36:26,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607843137254902 [2023-08-26 07:36:26,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 572 transitions. [2023-08-26 07:36:26,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 572 transitions. [2023-08-26 07:36:26,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:26,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 572 transitions. [2023-08-26 07:36:26,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,417 INFO L175 Difference]: Start difference. First operand has 83 places, 83 transitions, 224 flow. Second operand 3 states and 572 transitions. [2023-08-26 07:36:26,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 120 transitions, 542 flow [2023-08-26 07:36:26,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 120 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:26,420 INFO L231 Difference]: Finished difference. Result has 85 places, 90 transitions, 292 flow [2023-08-26 07:36:26,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=85, PETRI_TRANSITIONS=90} [2023-08-26 07:36:26,421 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -1 predicate places. [2023-08-26 07:36:26,421 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 292 flow [2023-08-26 07:36:26,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:26,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:26,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:36:26,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:26,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash -327807331, now seen corresponding path program 1 times [2023-08-26 07:36:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070869118] [2023-08-26 07:36:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:26,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:26,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:26,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070869118] [2023-08-26 07:36:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070869118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:26,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:26,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:36:26,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293615775] [2023-08-26 07:36:26,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:26,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:26,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:26,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:26,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:26,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 340 [2023-08-26 07:36:26,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 90 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:26,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 340 [2023-08-26 07:36:26,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:26,824 INFO L124 PetriNetUnfolderBase]: 1161/3058 cut-off events. [2023-08-26 07:36:26,824 INFO L125 PetriNetUnfolderBase]: For 612/654 co-relation queries the response was YES. [2023-08-26 07:36:26,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6397 conditions, 3058 events. 1161/3058 cut-off events. For 612/654 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 22263 event pairs, 686 based on Foata normal form. 28/2819 useless extension candidates. Maximal degree in co-relation 6385. Up to 2086 conditions per place. [2023-08-26 07:36:26,842 INFO L140 encePairwiseOnDemand]: 326/340 looper letters, 92 selfloop transitions, 15 changer transitions 0/138 dead transitions. [2023-08-26 07:36:26,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 625 flow [2023-08-26 07:36:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2023-08-26 07:36:26,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480392156862746 [2023-08-26 07:36:26,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2023-08-26 07:36:26,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2023-08-26 07:36:26,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:26,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2023-08-26 07:36:26,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,849 INFO L175 Difference]: Start difference. First operand has 85 places, 90 transitions, 292 flow. Second operand 3 states and 559 transitions. [2023-08-26 07:36:26,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 625 flow [2023-08-26 07:36:26,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 138 transitions, 605 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:26,857 INFO L231 Difference]: Finished difference. Result has 86 places, 101 transitions, 363 flow [2023-08-26 07:36:26,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=86, PETRI_TRANSITIONS=101} [2023-08-26 07:36:26,858 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 0 predicate places. [2023-08-26 07:36:26,858 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 101 transitions, 363 flow [2023-08-26 07:36:26,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:26,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:26,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:36:26,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:26,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash -54474462, now seen corresponding path program 1 times [2023-08-26 07:36:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019620480] [2023-08-26 07:36:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:26,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:27,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:27,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019620480] [2023-08-26 07:36:27,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019620480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:27,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:27,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:36:27,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462783946] [2023-08-26 07:36:27,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:27,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 07:36:27,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 07:36:27,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 07:36:27,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 340 [2023-08-26 07:36:27,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 101 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:27,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 340 [2023-08-26 07:36:27,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:27,303 INFO L124 PetriNetUnfolderBase]: 587/1558 cut-off events. [2023-08-26 07:36:27,303 INFO L125 PetriNetUnfolderBase]: For 443/452 co-relation queries the response was YES. [2023-08-26 07:36:27,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3664 conditions, 1558 events. 587/1558 cut-off events. For 443/452 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9711 event pairs, 211 based on Foata normal form. 20/1492 useless extension candidates. Maximal degree in co-relation 3651. Up to 695 conditions per place. [2023-08-26 07:36:27,312 INFO L140 encePairwiseOnDemand]: 333/340 looper letters, 103 selfloop transitions, 9 changer transitions 2/138 dead transitions. [2023-08-26 07:36:27,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 683 flow [2023-08-26 07:36:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:36:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:36:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 688 transitions. [2023-08-26 07:36:27,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5058823529411764 [2023-08-26 07:36:27,319 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 688 transitions. [2023-08-26 07:36:27,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 688 transitions. [2023-08-26 07:36:27,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:27,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 688 transitions. [2023-08-26 07:36:27,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,325 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,325 INFO L175 Difference]: Start difference. First operand has 86 places, 101 transitions, 363 flow. Second operand 4 states and 688 transitions. [2023-08-26 07:36:27,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 683 flow [2023-08-26 07:36:27,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 138 transitions, 665 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 07:36:27,333 INFO L231 Difference]: Finished difference. Result has 87 places, 92 transitions, 332 flow [2023-08-26 07:36:27,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=332, PETRI_PLACES=87, PETRI_TRANSITIONS=92} [2023-08-26 07:36:27,335 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 1 predicate places. [2023-08-26 07:36:27,335 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 92 transitions, 332 flow [2023-08-26 07:36:27,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:27,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:27,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:36:27,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:27,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:27,337 INFO L85 PathProgramCache]: Analyzing trace with hash 263390534, now seen corresponding path program 1 times [2023-08-26 07:36:27,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:27,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305446438] [2023-08-26 07:36:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:27,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:27,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:27,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305446438] [2023-08-26 07:36:27,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305446438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:27,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:27,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789567467] [2023-08-26 07:36:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:27,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:27,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:27,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:27,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 340 [2023-08-26 07:36:27,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 92 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:27,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 340 [2023-08-26 07:36:27,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:27,595 INFO L124 PetriNetUnfolderBase]: 630/1711 cut-off events. [2023-08-26 07:36:27,595 INFO L125 PetriNetUnfolderBase]: For 616/616 co-relation queries the response was YES. [2023-08-26 07:36:27,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4102 conditions, 1711 events. 630/1711 cut-off events. For 616/616 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10670 event pairs, 507 based on Foata normal form. 0/1592 useless extension candidates. Maximal degree in co-relation 4087. Up to 1327 conditions per place. [2023-08-26 07:36:27,604 INFO L140 encePairwiseOnDemand]: 335/340 looper letters, 80 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2023-08-26 07:36:27,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 103 transitions, 543 flow [2023-08-26 07:36:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2023-08-26 07:36:27,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5372549019607843 [2023-08-26 07:36:27,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2023-08-26 07:36:27,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2023-08-26 07:36:27,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:27,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2023-08-26 07:36:27,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,611 INFO L175 Difference]: Start difference. First operand has 87 places, 92 transitions, 332 flow. Second operand 3 states and 548 transitions. [2023-08-26 07:36:27,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 103 transitions, 543 flow [2023-08-26 07:36:27,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 103 transitions, 542 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:36:27,616 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 367 flow [2023-08-26 07:36:27,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2023-08-26 07:36:27,618 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2023-08-26 07:36:27,618 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 367 flow [2023-08-26 07:36:27,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:27,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:27,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:36:27,619 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:27,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash 618306389, now seen corresponding path program 1 times [2023-08-26 07:36:27,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:27,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999556928] [2023-08-26 07:36:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:27,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:27,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:27,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999556928] [2023-08-26 07:36:27,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999556928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:27,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:27,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144805335] [2023-08-26 07:36:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:27,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:27,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:27,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:27,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 340 [2023-08-26 07:36:27,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:27,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 340 [2023-08-26 07:36:27,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:27,897 INFO L124 PetriNetUnfolderBase]: 819/1941 cut-off events. [2023-08-26 07:36:27,897 INFO L125 PetriNetUnfolderBase]: For 960/983 co-relation queries the response was YES. [2023-08-26 07:36:27,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4953 conditions, 1941 events. 819/1941 cut-off events. For 960/983 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12157 event pairs, 342 based on Foata normal form. 5/1741 useless extension candidates. Maximal degree in co-relation 4937. Up to 997 conditions per place. [2023-08-26 07:36:27,907 INFO L140 encePairwiseOnDemand]: 331/340 looper letters, 115 selfloop transitions, 6 changer transitions 0/142 dead transitions. [2023-08-26 07:36:27,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 142 transitions, 777 flow [2023-08-26 07:36:27,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2023-08-26 07:36:27,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5970588235294118 [2023-08-26 07:36:27,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2023-08-26 07:36:27,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2023-08-26 07:36:27,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:27,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2023-08-26 07:36:27,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,914 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,914 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 367 flow. Second operand 3 states and 609 transitions. [2023-08-26 07:36:27,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 142 transitions, 777 flow [2023-08-26 07:36:27,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 142 transitions, 763 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:27,918 INFO L231 Difference]: Finished difference. Result has 90 places, 97 transitions, 395 flow [2023-08-26 07:36:27,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=90, PETRI_TRANSITIONS=97} [2023-08-26 07:36:27,919 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2023-08-26 07:36:27,919 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 97 transitions, 395 flow [2023-08-26 07:36:27,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:27,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:27,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:36:27,920 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:27,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:27,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1987629534, now seen corresponding path program 1 times [2023-08-26 07:36:27,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:27,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669333144] [2023-08-26 07:36:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:27,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:27,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:27,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669333144] [2023-08-26 07:36:27,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669333144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:27,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:27,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:36:27,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770544067] [2023-08-26 07:36:27,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:27,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:27,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:27,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:27,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:27,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 340 [2023-08-26 07:36:27,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 97 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:27,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:27,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 340 [2023-08-26 07:36:27,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:28,185 INFO L124 PetriNetUnfolderBase]: 619/1658 cut-off events. [2023-08-26 07:36:28,185 INFO L125 PetriNetUnfolderBase]: For 854/869 co-relation queries the response was YES. [2023-08-26 07:36:28,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4380 conditions, 1658 events. 619/1658 cut-off events. For 854/869 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10663 event pairs, 248 based on Foata normal form. 5/1573 useless extension candidates. Maximal degree in co-relation 4363. Up to 839 conditions per place. [2023-08-26 07:36:28,193 INFO L140 encePairwiseOnDemand]: 336/340 looper letters, 84 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2023-08-26 07:36:28,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 118 transitions, 644 flow [2023-08-26 07:36:28,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2023-08-26 07:36:28,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892156862745098 [2023-08-26 07:36:28,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 601 transitions. [2023-08-26 07:36:28,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions. [2023-08-26 07:36:28,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:28,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions. [2023-08-26 07:36:28,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,199 INFO L175 Difference]: Start difference. First operand has 90 places, 97 transitions, 395 flow. Second operand 3 states and 601 transitions. [2023-08-26 07:36:28,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 118 transitions, 644 flow [2023-08-26 07:36:28,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 118 transitions, 632 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:28,203 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 393 flow [2023-08-26 07:36:28,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2023-08-26 07:36:28,203 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2023-08-26 07:36:28,204 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 393 flow [2023-08-26 07:36:28,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:28,204 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] [2023-08-26 07:36:28,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:36:28,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:28,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash -693467459, now seen corresponding path program 1 times [2023-08-26 07:36:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:28,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220413013] [2023-08-26 07:36:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:28,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:28,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:28,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220413013] [2023-08-26 07:36:28,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220413013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:28,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:28,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:36:28,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225863840] [2023-08-26 07:36:28,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:28,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:36:28,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:36:28,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:36:28,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 340 [2023-08-26 07:36:28,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:28,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 340 [2023-08-26 07:36:28,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:28,602 INFO L124 PetriNetUnfolderBase]: 513/1439 cut-off events. [2023-08-26 07:36:28,602 INFO L125 PetriNetUnfolderBase]: For 749/759 co-relation queries the response was YES. [2023-08-26 07:36:28,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3741 conditions, 1439 events. 513/1439 cut-off events. For 749/759 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 8873 event pairs, 347 based on Foata normal form. 80/1462 useless extension candidates. Maximal degree in co-relation 3722. Up to 899 conditions per place. [2023-08-26 07:36:28,610 INFO L140 encePairwiseOnDemand]: 329/340 looper letters, 87 selfloop transitions, 9 changer transitions 1/128 dead transitions. [2023-08-26 07:36:28,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 128 transitions, 731 flow [2023-08-26 07:36:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 07:36:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 07:36:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1461 transitions. [2023-08-26 07:36:28,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371323529411764 [2023-08-26 07:36:28,615 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1461 transitions. [2023-08-26 07:36:28,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1461 transitions. [2023-08-26 07:36:28,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:28,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1461 transitions. [2023-08-26 07:36:28,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 182.625) internal successors, (1461), 8 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 340.0) internal successors, (3060), 9 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,622 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 340.0) internal successors, (3060), 9 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,623 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 393 flow. Second operand 8 states and 1461 transitions. [2023-08-26 07:36:28,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 128 transitions, 731 flow [2023-08-26 07:36:28,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 727 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:36:28,627 INFO L231 Difference]: Finished difference. Result has 95 places, 93 transitions, 400 flow [2023-08-26 07:36:28,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=400, PETRI_PLACES=95, PETRI_TRANSITIONS=93} [2023-08-26 07:36:28,628 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 9 predicate places. [2023-08-26 07:36:28,628 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 93 transitions, 400 flow [2023-08-26 07:36:28,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:28,629 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] [2023-08-26 07:36:28,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:36:28,629 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:28,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:28,630 INFO L85 PathProgramCache]: Analyzing trace with hash -227609686, now seen corresponding path program 1 times [2023-08-26 07:36:28,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:28,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458074166] [2023-08-26 07:36:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:28,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:28,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:28,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458074166] [2023-08-26 07:36:28,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458074166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:28,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:28,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:28,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737319513] [2023-08-26 07:36:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:28,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:28,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:28,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:28,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 340 [2023-08-26 07:36:28,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 93 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:28,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 340 [2023-08-26 07:36:28,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:28,889 INFO L124 PetriNetUnfolderBase]: 672/1662 cut-off events. [2023-08-26 07:36:28,890 INFO L125 PetriNetUnfolderBase]: For 1055/1074 co-relation queries the response was YES. [2023-08-26 07:36:28,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4616 conditions, 1662 events. 672/1662 cut-off events. For 1055/1074 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9810 event pairs, 471 based on Foata normal form. 6/1553 useless extension candidates. Maximal degree in co-relation 4595. Up to 1335 conditions per place. [2023-08-26 07:36:28,901 INFO L140 encePairwiseOnDemand]: 335/340 looper letters, 93 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2023-08-26 07:36:28,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 118 transitions, 687 flow [2023-08-26 07:36:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2023-08-26 07:36:28,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5627450980392157 [2023-08-26 07:36:28,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2023-08-26 07:36:28,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2023-08-26 07:36:28,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:28,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2023-08-26 07:36:28,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,907 INFO L175 Difference]: Start difference. First operand has 95 places, 93 transitions, 400 flow. Second operand 3 states and 574 transitions. [2023-08-26 07:36:28,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 118 transitions, 687 flow [2023-08-26 07:36:28,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 118 transitions, 669 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-26 07:36:28,912 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 420 flow [2023-08-26 07:36:28,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-08-26 07:36:28,913 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 6 predicate places. [2023-08-26 07:36:28,914 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 420 flow [2023-08-26 07:36:28,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:28,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:28,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:28,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:36:28,915 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:28,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:28,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1989073027, now seen corresponding path program 1 times [2023-08-26 07:36:28,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:28,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014843278] [2023-08-26 07:36:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:29,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:29,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014843278] [2023-08-26 07:36:29,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014843278] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:29,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:29,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:36:29,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938610281] [2023-08-26 07:36:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:29,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:36:29,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:36:29,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:36:29,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 340 [2023-08-26 07:36:29,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:29,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 340 [2023-08-26 07:36:29,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:29,245 INFO L124 PetriNetUnfolderBase]: 254/919 cut-off events. [2023-08-26 07:36:29,245 INFO L125 PetriNetUnfolderBase]: For 575/575 co-relation queries the response was YES. [2023-08-26 07:36:29,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2602 conditions, 919 events. 254/919 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5212 event pairs, 69 based on Foata normal form. 88/1001 useless extension candidates. Maximal degree in co-relation 2581. Up to 441 conditions per place. [2023-08-26 07:36:29,249 INFO L140 encePairwiseOnDemand]: 321/340 looper letters, 60 selfloop transitions, 25 changer transitions 8/111 dead transitions. [2023-08-26 07:36:29,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 669 flow [2023-08-26 07:36:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:36:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:36:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 672 transitions. [2023-08-26 07:36:29,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49411764705882355 [2023-08-26 07:36:29,251 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 672 transitions. [2023-08-26 07:36:29,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 672 transitions. [2023-08-26 07:36:29,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:29,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 672 transitions. [2023-08-26 07:36:29,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,255 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,255 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 420 flow. Second operand 4 states and 672 transitions. [2023-08-26 07:36:29,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 669 flow [2023-08-26 07:36:29,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 111 transitions, 609 flow, removed 14 selfloop flow, removed 9 redundant places. [2023-08-26 07:36:29,260 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 407 flow [2023-08-26 07:36:29,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=407, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2023-08-26 07:36:29,260 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2023-08-26 07:36:29,260 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 407 flow [2023-08-26 07:36:29,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:29,261 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] [2023-08-26 07:36:29,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:36:29,261 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:29,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1442658751, now seen corresponding path program 1 times [2023-08-26 07:36:29,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591342019] [2023-08-26 07:36:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:29,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:29,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:29,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591342019] [2023-08-26 07:36:29,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591342019] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:29,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:29,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:36:29,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796871778] [2023-08-26 07:36:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:29,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:36:29,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:36:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:36:29,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 340 [2023-08-26 07:36:29,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:29,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 340 [2023-08-26 07:36:29,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:29,670 INFO L124 PetriNetUnfolderBase]: 177/698 cut-off events. [2023-08-26 07:36:29,670 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2023-08-26 07:36:29,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2040 conditions, 698 events. 177/698 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3694 event pairs, 92 based on Foata normal form. 5/694 useless extension candidates. Maximal degree in co-relation 2021. Up to 412 conditions per place. [2023-08-26 07:36:29,673 INFO L140 encePairwiseOnDemand]: 335/340 looper letters, 67 selfloop transitions, 5 changer transitions 1/90 dead transitions. [2023-08-26 07:36:29,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 564 flow [2023-08-26 07:36:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:36:29,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:36:29,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 624 transitions. [2023-08-26 07:36:29,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588235294117647 [2023-08-26 07:36:29,676 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 624 transitions. [2023-08-26 07:36:29,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 624 transitions. [2023-08-26 07:36:29,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:29,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 624 transitions. [2023-08-26 07:36:29,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,681 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,681 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 407 flow. Second operand 4 states and 624 transitions. [2023-08-26 07:36:29,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 564 flow [2023-08-26 07:36:29,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 552 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-26 07:36:29,684 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 357 flow [2023-08-26 07:36:29,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2023-08-26 07:36:29,685 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2023-08-26 07:36:29,685 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 357 flow [2023-08-26 07:36:29,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:29,686 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] [2023-08-26 07:36:29,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 07:36:29,687 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:29,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash 365679209, now seen corresponding path program 1 times [2023-08-26 07:36:29,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:29,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122598967] [2023-08-26 07:36:29,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:29,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:29,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:29,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122598967] [2023-08-26 07:36:29,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122598967] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:29,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:29,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:36:29,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754851817] [2023-08-26 07:36:29,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:29,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:36:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:29,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:36:29,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:36:29,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 340 [2023-08-26 07:36:29,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:29,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 340 [2023-08-26 07:36:29,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:29,834 INFO L124 PetriNetUnfolderBase]: 196/706 cut-off events. [2023-08-26 07:36:29,834 INFO L125 PetriNetUnfolderBase]: For 622/628 co-relation queries the response was YES. [2023-08-26 07:36:29,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 706 events. 196/706 cut-off events. For 622/628 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3599 event pairs, 160 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 2099. Up to 573 conditions per place. [2023-08-26 07:36:29,836 INFO L140 encePairwiseOnDemand]: 337/340 looper letters, 48 selfloop transitions, 2 changer transitions 21/82 dead transitions. [2023-08-26 07:36:29,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 82 transitions, 521 flow [2023-08-26 07:36:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:36:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:36:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2023-08-26 07:36:29,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.542156862745098 [2023-08-26 07:36:29,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2023-08-26 07:36:29,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2023-08-26 07:36:29,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:29,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2023-08-26 07:36:29,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,843 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 357 flow. Second operand 3 states and 553 transitions. [2023-08-26 07:36:29,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 82 transitions, 521 flow [2023-08-26 07:36:29,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 503 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 07:36:29,846 INFO L231 Difference]: Finished difference. Result has 78 places, 59 transitions, 267 flow [2023-08-26 07:36:29,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=78, PETRI_TRANSITIONS=59} [2023-08-26 07:36:29,847 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -8 predicate places. [2023-08-26 07:36:29,847 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 59 transitions, 267 flow [2023-08-26 07:36:29,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:29,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:29,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 07:36:29,848 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:29,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1812766596, now seen corresponding path program 1 times [2023-08-26 07:36:29,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:29,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15308034] [2023-08-26 07:36:29,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:29,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:29,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15308034] [2023-08-26 07:36:29,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15308034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:29,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:29,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:36:29,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956394236] [2023-08-26 07:36:29,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:29,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:36:29,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:36:29,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:36:29,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 340 [2023-08-26 07:36:29,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 59 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:29,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:29,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 340 [2023-08-26 07:36:29,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:30,059 INFO L124 PetriNetUnfolderBase]: 23/177 cut-off events. [2023-08-26 07:36:30,059 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-08-26 07:36:30,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 177 events. 23/177 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 440 event pairs, 4 based on Foata normal form. 16/193 useless extension candidates. Maximal degree in co-relation 497. Up to 88 conditions per place. [2023-08-26 07:36:30,060 INFO L140 encePairwiseOnDemand]: 336/340 looper letters, 42 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2023-08-26 07:36:30,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 389 flow [2023-08-26 07:36:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:36:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:36:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 631 transitions. [2023-08-26 07:36:30,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46397058823529413 [2023-08-26 07:36:30,062 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 631 transitions. [2023-08-26 07:36:30,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 631 transitions. [2023-08-26 07:36:30,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:30,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 631 transitions. [2023-08-26 07:36:30,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 157.75) internal successors, (631), 4 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) [2023-08-26 07:36:30,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,066 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,066 INFO L175 Difference]: Start difference. First operand has 78 places, 59 transitions, 267 flow. Second operand 4 states and 631 transitions. [2023-08-26 07:36:30,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 389 flow [2023-08-26 07:36:30,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 363 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-26 07:36:30,069 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 251 flow [2023-08-26 07:36:30,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=251, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2023-08-26 07:36:30,069 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2023-08-26 07:36:30,069 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 251 flow [2023-08-26 07:36:30,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:30,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:30,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 07:36:30,070 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-26 07:36:30,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1817425949, now seen corresponding path program 1 times [2023-08-26 07:36:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822606788] [2023-08-26 07:36:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:30,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:30,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822606788] [2023-08-26 07:36:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822606788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:30,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:30,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:36:30,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041328581] [2023-08-26 07:36:30,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:30,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:36:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:30,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:36:30,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:36:30,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 340 [2023-08-26 07:36:30,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 251 flow. Second operand has 5 states, 5 states have (on average 183.2) internal successors, (916), 5 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:30,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 340 [2023-08-26 07:36:30,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:30,318 INFO L124 PetriNetUnfolderBase]: 24/176 cut-off events. [2023-08-26 07:36:30,318 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2023-08-26 07:36:30,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 176 events. 24/176 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 440 event pairs, 8 based on Foata normal form. 2/176 useless extension candidates. Maximal degree in co-relation 469. Up to 84 conditions per place. [2023-08-26 07:36:30,318 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2023-08-26 07:36:30,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 64 transitions, 387 flow [2023-08-26 07:36:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:36:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:36:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1098 transitions. [2023-08-26 07:36:30,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.538235294117647 [2023-08-26 07:36:30,322 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1098 transitions. [2023-08-26 07:36:30,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1098 transitions. [2023-08-26 07:36:30,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:30,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1098 transitions. [2023-08-26 07:36:30,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 340.0) internal successors, (2380), 7 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,328 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 340.0) internal successors, (2380), 7 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,328 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 251 flow. Second operand 6 states and 1098 transitions. [2023-08-26 07:36:30,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 64 transitions, 387 flow [2023-08-26 07:36:30,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 07:36:30,329 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-26 07:36:30,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-26 07:36:30,330 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -20 predicate places. [2023-08-26 07:36:30,330 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-26 07:36:30,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.2) internal successors, (916), 5 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:30,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-08-26 07:36:30,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (24 of 26 remaining) [2023-08-26 07:36:30,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-26 07:36:30,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (22 of 26 remaining) [2023-08-26 07:36:30,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (20 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (18 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-26 07:36:30,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-26 07:36:30,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-26 07:36:30,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-08-26 07:36:30,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 07:36:30,336 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:30,340 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:36:30,340 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:36:30,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:36:30 BasicIcfg [2023-08-26 07:36:30,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:36:30,344 INFO L158 Benchmark]: Toolchain (without parser) took 10632.67ms. Allocated memory was 356.5MB in the beginning and 545.3MB in the end (delta: 188.7MB). Free memory was 331.9MB in the beginning and 213.2MB in the end (delta: 118.7MB). Peak memory consumption was 308.0MB. Max. memory is 16.0GB. [2023-08-26 07:36:30,344 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 333.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:36:30,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.14ms. Allocated memory is still 356.5MB. Free memory was 331.9MB in the beginning and 312.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:36:30,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.02ms. Allocated memory is still 356.5MB. Free memory was 312.0MB in the beginning and 309.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:36:30,345 INFO L158 Benchmark]: Boogie Preprocessor took 26.08ms. Allocated memory is still 356.5MB. Free memory was 309.4MB in the beginning and 307.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:36:30,345 INFO L158 Benchmark]: RCFGBuilder took 566.13ms. Allocated memory is still 356.5MB. Free memory was 307.8MB in the beginning and 288.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:36:30,345 INFO L158 Benchmark]: TraceAbstraction took 9533.43ms. Allocated memory was 356.5MB in the beginning and 545.3MB in the end (delta: 188.7MB). Free memory was 287.8MB in the beginning and 213.2MB in the end (delta: 74.7MB). Peak memory consumption was 263.9MB. Max. memory is 16.0GB. [2023-08-26 07:36:30,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 333.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 456.14ms. Allocated memory is still 356.5MB. Free memory was 331.9MB in the beginning and 312.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.02ms. Allocated memory is still 356.5MB. Free memory was 312.0MB in the beginning and 309.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.08ms. Allocated memory is still 356.5MB. Free memory was 309.4MB in the beginning and 307.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 566.13ms. Allocated memory is still 356.5MB. Free memory was 307.8MB in the beginning and 288.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 9533.43ms. Allocated memory was 356.5MB in the beginning and 545.3MB in the end (delta: 188.7MB). Free memory was 287.8MB in the beginning and 213.2MB in the end (delta: 74.7MB). Peak memory consumption was 263.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 185 PlacesBefore, 86 PlacesAfterwards, 189 TransitionsBefore, 88 TransitionsAfterwards, 11310 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 143 TotalNumberOfCompositions, 51261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13665, independent: 12715, independent conditional: 0, independent unconditional: 12715, dependent: 950, dependent conditional: 0, dependent unconditional: 950, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5684, independent: 5551, independent conditional: 0, independent unconditional: 5551, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13665, independent: 7164, independent conditional: 0, independent unconditional: 7164, dependent: 817, dependent conditional: 0, dependent unconditional: 817, unknown: 5684, unknown conditional: 0, unknown unconditional: 5684] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 672, Positive conditional cache size: 0, Positive unconditional cache size: 672, Negative cache size: 87, Negative conditional cache size: 0, Negative unconditional cache size: 87, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 257 locations, 26 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: 9.4s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 537 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 537 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1757 IncrementalHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 62 mSDtfsCounter, 1757 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=10, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 333 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 1172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:36:30,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...