./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:30:50,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:30:50,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:30:50,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:30:50,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:30:50,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:30:50,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:30:50,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:30:50,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:30:50,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:30:50,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:30:50,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:30:50,679 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:30:50,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:30:50,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:30:50,681 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:30:50,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:30:50,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:30:50,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:30:50,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:30:50,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:30:50,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:30:50,685 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:30:50,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:30:50,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:30:50,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:30:50,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:30:50,686 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:30:50,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:30:50,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:30:50,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:30:50,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:30:50,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:30:50,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:30:50,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:30:50,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:30:50,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:30:50,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:30:50,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:30:50,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:30:50,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:30:50,690 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2024-10-24 15:30:50,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:30:50,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:30:50,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:30:50,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:30:50,934 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:30:50,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-10-24 15:30:52,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:30:52,545 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:30:52,546 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-10-24 15:30:52,552 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deac4ac38/cd2e28ef13db4d0aaf806e4cb620197b/FLAGbe4585d1c [2024-10-24 15:30:52,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deac4ac38/cd2e28ef13db4d0aaf806e4cb620197b [2024-10-24 15:30:52,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:30:52,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:30:52,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:30:52,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:30:52,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:30:52,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:52,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee3bac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52, skipping insertion in model container [2024-10-24 15:30:52,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:52,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:30:52,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:30:52,865 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:30:52,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:30:52,939 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:30:52,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52 WrapperNode [2024-10-24 15:30:52,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:30:52,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:30:52,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:30:52,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:30:52,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:52,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,002 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 797 [2024-10-24 15:30:53,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:30:53,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:30:53,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:30:53,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:30:53,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:30:53,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:30:53,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:30:53,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:30:53,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (1/1) ... [2024-10-24 15:30:53,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:30:53,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:30:53,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:30:53,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:30:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:30:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:30:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:30:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 15:30:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 15:30:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 15:30:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 15:30:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 15:30:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 15:30:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:30:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:30:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:30:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:30:53,144 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:30:53,279 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:30:53,281 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:30:54,144 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:30:54,145 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:30:54,184 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:30:54,184 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-24 15:30:54,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:30:54 BoogieIcfgContainer [2024-10-24 15:30:54,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:30:54,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:30:54,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:30:54,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:30:54,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:30:52" (1/3) ... [2024-10-24 15:30:54,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9b5233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:30:54, skipping insertion in model container [2024-10-24 15:30:54,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:30:52" (2/3) ... [2024-10-24 15:30:54,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9b5233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:30:54, skipping insertion in model container [2024-10-24 15:30:54,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:30:54" (3/3) ... [2024-10-24 15:30:54,199 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2024-10-24 15:30:54,218 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:30:54,218 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 116 error locations. [2024-10-24 15:30:54,218 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:30:54,432 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-24 15:30:54,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1016 places, 1054 transitions, 2129 flow [2024-10-24 15:30:54,859 INFO L124 PetriNetUnfolderBase]: 48/1051 cut-off events. [2024-10-24 15:30:54,859 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 15:30:54,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 1051 events. 48/1051 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2176 event pairs, 0 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 855. Up to 2 conditions per place. [2024-10-24 15:30:54,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 1016 places, 1054 transitions, 2129 flow [2024-10-24 15:30:54,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 993 places, 1028 transitions, 2074 flow [2024-10-24 15:30:54,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:30:54,916 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@31de7eae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:30:54,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 194 error locations. [2024-10-24 15:30:54,922 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:30:54,922 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-24 15:30:54,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:30:54,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:54,923 INFO L204 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] [2024-10-24 15:30:54,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:30:54,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2026280969, now seen corresponding path program 1 times [2024-10-24 15:30:54,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:54,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529486659] [2024-10-24 15:30:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:54,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:55,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:55,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529486659] [2024-10-24 15:30:55,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529486659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:55,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:55,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:55,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046112892] [2024-10-24 15:30:55,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:55,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:55,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:55,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:55,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1054 [2024-10-24 15:30:55,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 993 places, 1028 transitions, 2074 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:55,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:55,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1054 [2024-10-24 15:30:55,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:30:55,995 INFO L124 PetriNetUnfolderBase]: 86/2508 cut-off events. [2024-10-24 15:30:55,995 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-24 15:30:56,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 2508 events. 86/2508 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 14336 event pairs, 39 based on Foata normal form. 68/2125 useless extension candidates. Maximal degree in co-relation 1937. Up to 89 conditions per place. [2024-10-24 15:30:56,132 INFO L140 encePairwiseOnDemand]: 1023/1054 looper letters, 19 selfloop transitions, 2 changer transitions 16/999 dead transitions. [2024-10-24 15:30:56,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 994 places, 999 transitions, 2058 flow [2024-10-24 15:30:56,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:30:56,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:30:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3053 transitions. [2024-10-24 15:30:56,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.965528146742568 [2024-10-24 15:30:56,154 INFO L175 Difference]: Start difference. First operand has 993 places, 1028 transitions, 2074 flow. Second operand 3 states and 3053 transitions. [2024-10-24 15:30:56,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 994 places, 999 transitions, 2058 flow [2024-10-24 15:30:56,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 988 places, 999 transitions, 2046 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 15:30:56,176 INFO L231 Difference]: Finished difference. Result has 988 places, 983 transitions, 1976 flow [2024-10-24 15:30:56,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=2004, PETRI_DIFFERENCE_MINUEND_PLACES=986, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=999, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=997, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1976, PETRI_PLACES=988, PETRI_TRANSITIONS=983} [2024-10-24 15:30:56,182 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -5 predicate places. [2024-10-24 15:30:56,182 INFO L471 AbstractCegarLoop]: Abstraction has has 988 places, 983 transitions, 1976 flow [2024-10-24 15:30:56,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:56,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:56,184 INFO L204 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] [2024-10-24 15:30:56,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:30:56,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:30:56,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:56,185 INFO L85 PathProgramCache]: Analyzing trace with hash 135341622, now seen corresponding path program 1 times [2024-10-24 15:30:56,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:56,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407761970] [2024-10-24 15:30:56,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:56,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:56,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:56,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407761970] [2024-10-24 15:30:56,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407761970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:56,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:56,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:56,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277621739] [2024-10-24 15:30:56,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:56,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:56,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:56,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1054 [2024-10-24 15:30:56,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 988 places, 983 transitions, 1976 flow. Second operand has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:56,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:56,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1054 [2024-10-24 15:30:56,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:30:57,192 INFO L124 PetriNetUnfolderBase]: 212/3960 cut-off events. [2024-10-24 15:30:57,193 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-24 15:30:57,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4280 conditions, 3960 events. 212/3960 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 29672 event pairs, 132 based on Foata normal form. 0/3318 useless extension candidates. Maximal degree in co-relation 4237. Up to 257 conditions per place. [2024-10-24 15:30:57,255 INFO L140 encePairwiseOnDemand]: 1043/1054 looper letters, 26 selfloop transitions, 1 changer transitions 0/973 dead transitions. [2024-10-24 15:30:57,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 973 transitions, 2010 flow [2024-10-24 15:30:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:30:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:30:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2998 transitions. [2024-10-24 15:30:57,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948134092346616 [2024-10-24 15:30:57,262 INFO L175 Difference]: Start difference. First operand has 988 places, 983 transitions, 1976 flow. Second operand 3 states and 2998 transitions. [2024-10-24 15:30:57,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 973 transitions, 2010 flow [2024-10-24 15:30:57,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 973 transitions, 2006 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:30:57,278 INFO L231 Difference]: Finished difference. Result has 962 places, 973 transitions, 1954 flow [2024-10-24 15:30:57,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1952, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=972, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1954, PETRI_PLACES=962, PETRI_TRANSITIONS=973} [2024-10-24 15:30:57,280 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -31 predicate places. [2024-10-24 15:30:57,280 INFO L471 AbstractCegarLoop]: Abstraction has has 962 places, 973 transitions, 1954 flow [2024-10-24 15:30:57,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:57,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:57,282 INFO L204 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, 1] [2024-10-24 15:30:57,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:30:57,282 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:30:57,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1957615406, now seen corresponding path program 1 times [2024-10-24 15:30:57,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:57,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117275923] [2024-10-24 15:30:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:57,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117275923] [2024-10-24 15:30:57,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117275923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:57,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:57,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:57,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801828339] [2024-10-24 15:30:57,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:57,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:57,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:57,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:57,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:57,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1054 [2024-10-24 15:30:57,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 973 transitions, 1954 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:57,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:57,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1054 [2024-10-24 15:30:57,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:30:57,923 INFO L124 PetriNetUnfolderBase]: 62/2211 cut-off events. [2024-10-24 15:30:57,924 INFO L125 PetriNetUnfolderBase]: For 9/16 co-relation queries the response was YES. [2024-10-24 15:30:57,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 2211 events. 62/2211 cut-off events. For 9/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 11135 event pairs, 21 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 2244. Up to 62 conditions per place. [2024-10-24 15:30:57,958 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 19 selfloop transitions, 2 changer transitions 0/972 dead transitions. [2024-10-24 15:30:57,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 963 places, 972 transitions, 1994 flow [2024-10-24 15:30:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:30:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:30:57,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3025 transitions. [2024-10-24 15:30:57,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9566729917773561 [2024-10-24 15:30:57,963 INFO L175 Difference]: Start difference. First operand has 962 places, 973 transitions, 1954 flow. Second operand 3 states and 3025 transitions. [2024-10-24 15:30:57,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 963 places, 972 transitions, 1994 flow [2024-10-24 15:30:57,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 972 transitions, 1993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:30:57,974 INFO L231 Difference]: Finished difference. Result has 962 places, 972 transitions, 1955 flow [2024-10-24 15:30:57,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1951, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1955, PETRI_PLACES=962, PETRI_TRANSITIONS=972} [2024-10-24 15:30:57,976 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -31 predicate places. [2024-10-24 15:30:57,976 INFO L471 AbstractCegarLoop]: Abstraction has has 962 places, 972 transitions, 1955 flow [2024-10-24 15:30:57,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:57,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:57,978 INFO L204 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, 1, 1, 1, 1, 1] [2024-10-24 15:30:57,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:30:57,979 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:30:57,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:57,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1220255805, now seen corresponding path program 1 times [2024-10-24 15:30:57,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:57,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617404219] [2024-10-24 15:30:57,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:57,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:58,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:58,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:58,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617404219] [2024-10-24 15:30:58,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617404219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:58,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:58,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943266534] [2024-10-24 15:30:58,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:58,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:58,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:58,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:58,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1054 [2024-10-24 15:30:58,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 972 transitions, 1955 flow. Second operand has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:58,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:58,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1054 [2024-10-24 15:30:58,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:30:58,574 INFO L124 PetriNetUnfolderBase]: 116/2624 cut-off events. [2024-10-24 15:30:58,575 INFO L125 PetriNetUnfolderBase]: For 17/119 co-relation queries the response was YES. [2024-10-24 15:30:58,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2795 conditions, 2624 events. 116/2624 cut-off events. For 17/119 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 15867 event pairs, 60 based on Foata normal form. 0/2222 useless extension candidates. Maximal degree in co-relation 2753. Up to 149 conditions per place. [2024-10-24 15:30:58,636 INFO L140 encePairwiseOnDemand]: 1043/1054 looper letters, 26 selfloop transitions, 1 changer transitions 0/962 dead transitions. [2024-10-24 15:30:58,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 954 places, 962 transitions, 1989 flow [2024-10-24 15:30:58,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:30:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:30:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2998 transitions. [2024-10-24 15:30:58,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948134092346616 [2024-10-24 15:30:58,641 INFO L175 Difference]: Start difference. First operand has 962 places, 972 transitions, 1955 flow. Second operand 3 states and 2998 transitions. [2024-10-24 15:30:58,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 954 places, 962 transitions, 1989 flow [2024-10-24 15:30:58,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 962 transitions, 1985 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:30:58,653 INFO L231 Difference]: Finished difference. Result has 952 places, 962 transitions, 1933 flow [2024-10-24 15:30:58,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=952, PETRI_TRANSITIONS=962} [2024-10-24 15:30:58,655 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -41 predicate places. [2024-10-24 15:30:58,655 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 962 transitions, 1933 flow [2024-10-24 15:30:58,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:58,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:58,657 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:30:58,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:30:58,658 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:30:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1507343733, now seen corresponding path program 1 times [2024-10-24 15:30:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961856933] [2024-10-24 15:30:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:58,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:58,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:58,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961856933] [2024-10-24 15:30:58,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961856933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:58,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:58,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:58,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555644848] [2024-10-24 15:30:58,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:58,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:58,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:58,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:58,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:58,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1054 [2024-10-24 15:30:58,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 962 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:58,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:58,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1054 [2024-10-24 15:30:58,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:30:59,090 INFO L124 PetriNetUnfolderBase]: 74/1837 cut-off events. [2024-10-24 15:30:59,090 INFO L125 PetriNetUnfolderBase]: For 20/47 co-relation queries the response was YES. [2024-10-24 15:30:59,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 1837 events. 74/1837 cut-off events. For 20/47 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8460 event pairs, 39 based on Foata normal form. 0/1563 useless extension candidates. Maximal degree in co-relation 1895. Up to 89 conditions per place. [2024-10-24 15:30:59,118 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 19 selfloop transitions, 2 changer transitions 0/961 dead transitions. [2024-10-24 15:30:59,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 961 transitions, 1973 flow [2024-10-24 15:30:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:30:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:30:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3025 transitions. [2024-10-24 15:30:59,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9566729917773561 [2024-10-24 15:30:59,123 INFO L175 Difference]: Start difference. First operand has 952 places, 962 transitions, 1933 flow. Second operand 3 states and 3025 transitions. [2024-10-24 15:30:59,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 961 transitions, 1973 flow [2024-10-24 15:30:59,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 961 transitions, 1972 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:30:59,133 INFO L231 Difference]: Finished difference. Result has 952 places, 961 transitions, 1934 flow [2024-10-24 15:30:59,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1930, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1934, PETRI_PLACES=952, PETRI_TRANSITIONS=961} [2024-10-24 15:30:59,137 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -41 predicate places. [2024-10-24 15:30:59,137 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 961 transitions, 1934 flow [2024-10-24 15:30:59,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:59,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:30:59,139 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:30:59,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:30:59,139 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:30:59,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:30:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash 319350018, now seen corresponding path program 1 times [2024-10-24 15:30:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:30:59,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986376935] [2024-10-24 15:30:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:30:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:30:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:30:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:30:59,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:30:59,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986376935] [2024-10-24 15:30:59,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986376935] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:30:59,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:30:59,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:30:59,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241147373] [2024-10-24 15:30:59,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:30:59,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:30:59,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:30:59,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:30:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:30:59,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1054 [2024-10-24 15:30:59,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 961 transitions, 1934 flow. Second operand has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:30:59,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:30:59,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1054 [2024-10-24 15:30:59,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:00,032 INFO L124 PetriNetUnfolderBase]: 226/3707 cut-off events. [2024-10-24 15:31:00,033 INFO L125 PetriNetUnfolderBase]: For 65/94 co-relation queries the response was YES. [2024-10-24 15:31:00,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3998 conditions, 3707 events. 226/3707 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 26673 event pairs, 132 based on Foata normal form. 0/3158 useless extension candidates. Maximal degree in co-relation 3956. Up to 274 conditions per place. [2024-10-24 15:31:00,091 INFO L140 encePairwiseOnDemand]: 1043/1054 looper letters, 26 selfloop transitions, 1 changer transitions 0/951 dead transitions. [2024-10-24 15:31:00,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 944 places, 951 transitions, 1968 flow [2024-10-24 15:31:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2998 transitions. [2024-10-24 15:31:00,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948134092346616 [2024-10-24 15:31:00,097 INFO L175 Difference]: Start difference. First operand has 952 places, 961 transitions, 1934 flow. Second operand 3 states and 2998 transitions. [2024-10-24 15:31:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 944 places, 951 transitions, 1968 flow [2024-10-24 15:31:00,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 942 places, 951 transitions, 1964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:00,109 INFO L231 Difference]: Finished difference. Result has 942 places, 951 transitions, 1912 flow [2024-10-24 15:31:00,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=940, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=951, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=950, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1912, PETRI_PLACES=942, PETRI_TRANSITIONS=951} [2024-10-24 15:31:00,111 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -51 predicate places. [2024-10-24 15:31:00,111 INFO L471 AbstractCegarLoop]: Abstraction has has 942 places, 951 transitions, 1912 flow [2024-10-24 15:31:00,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 988.0) internal successors, (2964), 3 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:00,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:00,113 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:00,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:31:00,113 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:00,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:00,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1660174462, now seen corresponding path program 1 times [2024-10-24 15:31:00,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:00,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851808783] [2024-10-24 15:31:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:00,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:00,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851808783] [2024-10-24 15:31:00,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851808783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:00,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:00,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:00,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717628838] [2024-10-24 15:31:00,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:00,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:00,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:00,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:00,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1009 out of 1054 [2024-10-24 15:31:00,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 942 places, 951 transitions, 1912 flow. Second operand has 3 states, 3 states have (on average 1010.3333333333334) internal successors, (3031), 3 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:00,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:00,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1009 of 1054 [2024-10-24 15:31:00,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:00,407 INFO L124 PetriNetUnfolderBase]: 25/1251 cut-off events. [2024-10-24 15:31:00,408 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-10-24 15:31:00,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 1251 events. 25/1251 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3310 event pairs, 2 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 1236. Up to 16 conditions per place. [2024-10-24 15:31:00,429 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 11 selfloop transitions, 2 changer transitions 0/950 dead transitions. [2024-10-24 15:31:00,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 950 transitions, 1936 flow [2024-10-24 15:31:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3041 transitions. [2024-10-24 15:31:00,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9617330803289058 [2024-10-24 15:31:00,437 INFO L175 Difference]: Start difference. First operand has 942 places, 951 transitions, 1912 flow. Second operand 3 states and 3041 transitions. [2024-10-24 15:31:00,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 943 places, 950 transitions, 1936 flow [2024-10-24 15:31:00,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 942 places, 950 transitions, 1935 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:31:00,452 INFO L231 Difference]: Finished difference. Result has 942 places, 950 transitions, 1913 flow [2024-10-24 15:31:00,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1909, PETRI_DIFFERENCE_MINUEND_PLACES=940, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1913, PETRI_PLACES=942, PETRI_TRANSITIONS=950} [2024-10-24 15:31:00,454 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -51 predicate places. [2024-10-24 15:31:00,454 INFO L471 AbstractCegarLoop]: Abstraction has has 942 places, 950 transitions, 1913 flow [2024-10-24 15:31:00,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1010.3333333333334) internal successors, (3031), 3 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:00,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:00,456 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:00,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:31:00,456 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:00,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:00,457 INFO L85 PathProgramCache]: Analyzing trace with hash -720464191, now seen corresponding path program 1 times [2024-10-24 15:31:00,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:00,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016155446] [2024-10-24 15:31:00,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:00,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:00,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016155446] [2024-10-24 15:31:00,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016155446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:00,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:00,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:00,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559207925] [2024-10-24 15:31:00,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:00,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:00,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:00,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:00,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 942 places, 950 transitions, 1913 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:00,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:00,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:00,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:00,919 INFO L124 PetriNetUnfolderBase]: 41/1852 cut-off events. [2024-10-24 15:31:00,920 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-24 15:31:00,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1852 events. 41/1852 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8286 event pairs, 6 based on Foata normal form. 0/1601 useless extension candidates. Maximal degree in co-relation 1852. Up to 25 conditions per place. [2024-10-24 15:31:00,954 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/949 dead transitions. [2024-10-24 15:31:00,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 949 transitions, 1939 flow [2024-10-24 15:31:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:00,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:00,959 INFO L175 Difference]: Start difference. First operand has 942 places, 950 transitions, 1913 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:00,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 943 places, 949 transitions, 1939 flow [2024-10-24 15:31:00,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 941 places, 949 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:00,972 INFO L231 Difference]: Finished difference. Result has 941 places, 949 transitions, 1911 flow [2024-10-24 15:31:00,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1907, PETRI_DIFFERENCE_MINUEND_PLACES=939, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=947, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1911, PETRI_PLACES=941, PETRI_TRANSITIONS=949} [2024-10-24 15:31:00,973 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -52 predicate places. [2024-10-24 15:31:00,974 INFO L471 AbstractCegarLoop]: Abstraction has has 941 places, 949 transitions, 1911 flow [2024-10-24 15:31:00,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:00,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:00,976 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:00,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:31:00,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:00,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2057582347, now seen corresponding path program 1 times [2024-10-24 15:31:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:00,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843626119] [2024-10-24 15:31:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:00,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:01,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:01,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843626119] [2024-10-24 15:31:01,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843626119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:01,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:01,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:01,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919412203] [2024-10-24 15:31:01,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:01,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:01,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:01,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:01,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:01,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:01,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 949 transitions, 1911 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:01,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:01,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:01,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:01,339 INFO L124 PetriNetUnfolderBase]: 41/1851 cut-off events. [2024-10-24 15:31:01,339 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-24 15:31:01,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1894 conditions, 1851 events. 41/1851 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8271 event pairs, 6 based on Foata normal form. 0/1601 useless extension candidates. Maximal degree in co-relation 1851. Up to 25 conditions per place. [2024-10-24 15:31:01,361 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/948 dead transitions. [2024-10-24 15:31:01,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 948 transitions, 1937 flow [2024-10-24 15:31:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:01,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:01,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:01,366 INFO L175 Difference]: Start difference. First operand has 941 places, 949 transitions, 1911 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:01,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 948 transitions, 1937 flow [2024-10-24 15:31:01,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 948 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:01,375 INFO L231 Difference]: Finished difference. Result has 940 places, 948 transitions, 1909 flow [2024-10-24 15:31:01,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1909, PETRI_PLACES=940, PETRI_TRANSITIONS=948} [2024-10-24 15:31:01,378 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -53 predicate places. [2024-10-24 15:31:01,379 INFO L471 AbstractCegarLoop]: Abstraction has has 940 places, 948 transitions, 1909 flow [2024-10-24 15:31:01,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:01,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:01,380 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:01,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:31:01,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:01,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:01,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1458072727, now seen corresponding path program 1 times [2024-10-24 15:31:01,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:01,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147110998] [2024-10-24 15:31:01,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:01,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:01,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:01,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147110998] [2024-10-24 15:31:01,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147110998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:01,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:01,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:01,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756678810] [2024-10-24 15:31:01,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:01,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:01,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:01,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:01,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:01,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:01,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 948 transitions, 1909 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:01,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:01,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:01,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:01,584 INFO L124 PetriNetUnfolderBase]: 22/1098 cut-off events. [2024-10-24 15:31:01,585 INFO L125 PetriNetUnfolderBase]: For 2/5 co-relation queries the response was YES. [2024-10-24 15:31:01,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 1098 events. 22/1098 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2525 event pairs, 2 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1085. Up to 17 conditions per place. [2024-10-24 15:31:01,603 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/947 dead transitions. [2024-10-24 15:31:01,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 947 transitions, 1935 flow [2024-10-24 15:31:01,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:01,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:01,607 INFO L175 Difference]: Start difference. First operand has 940 places, 948 transitions, 1909 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:01,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 947 transitions, 1935 flow [2024-10-24 15:31:01,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 947 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:01,618 INFO L231 Difference]: Finished difference. Result has 939 places, 947 transitions, 1907 flow [2024-10-24 15:31:01,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1907, PETRI_PLACES=939, PETRI_TRANSITIONS=947} [2024-10-24 15:31:01,620 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -54 predicate places. [2024-10-24 15:31:01,620 INFO L471 AbstractCegarLoop]: Abstraction has has 939 places, 947 transitions, 1907 flow [2024-10-24 15:31:01,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:01,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:01,622 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:01,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:31:01,623 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:01,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:01,623 INFO L85 PathProgramCache]: Analyzing trace with hash 60252526, now seen corresponding path program 1 times [2024-10-24 15:31:01,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:01,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206501602] [2024-10-24 15:31:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:01,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:01,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:01,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206501602] [2024-10-24 15:31:01,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206501602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:01,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:01,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:01,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092175905] [2024-10-24 15:31:01,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:01,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:01,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:01,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:01,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:01,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:01,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 947 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:01,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:01,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:01,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:01,887 INFO L124 PetriNetUnfolderBase]: 32/1399 cut-off events. [2024-10-24 15:31:01,887 INFO L125 PetriNetUnfolderBase]: For 4/36 co-relation queries the response was YES. [2024-10-24 15:31:01,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1439 conditions, 1399 events. 32/1399 cut-off events. For 4/36 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4844 event pairs, 6 based on Foata normal form. 0/1222 useless extension candidates. Maximal degree in co-relation 1396. Up to 25 conditions per place. [2024-10-24 15:31:01,915 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/946 dead transitions. [2024-10-24 15:31:01,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 946 transitions, 1933 flow [2024-10-24 15:31:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:01,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:01,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:01,920 INFO L175 Difference]: Start difference. First operand has 939 places, 947 transitions, 1907 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:01,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 946 transitions, 1933 flow [2024-10-24 15:31:01,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 946 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:01,931 INFO L231 Difference]: Finished difference. Result has 938 places, 946 transitions, 1905 flow [2024-10-24 15:31:01,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1905, PETRI_PLACES=938, PETRI_TRANSITIONS=946} [2024-10-24 15:31:01,933 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -55 predicate places. [2024-10-24 15:31:01,933 INFO L471 AbstractCegarLoop]: Abstraction has has 938 places, 946 transitions, 1905 flow [2024-10-24 15:31:01,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:01,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:01,936 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:01,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:31:01,936 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:01,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:01,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1490239202, now seen corresponding path program 1 times [2024-10-24 15:31:01,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:01,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179623012] [2024-10-24 15:31:01,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:01,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:01,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:01,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179623012] [2024-10-24 15:31:01,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179623012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:01,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:01,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:01,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183098843] [2024-10-24 15:31:01,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:01,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:01,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:01,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:02,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 946 transitions, 1905 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:02,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:02,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:02,232 INFO L124 PetriNetUnfolderBase]: 32/1398 cut-off events. [2024-10-24 15:31:02,232 INFO L125 PetriNetUnfolderBase]: For 4/28 co-relation queries the response was YES. [2024-10-24 15:31:02,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 1398 events. 32/1398 cut-off events. For 4/28 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4824 event pairs, 6 based on Foata normal form. 0/1223 useless extension candidates. Maximal degree in co-relation 1395. Up to 25 conditions per place. [2024-10-24 15:31:02,259 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/945 dead transitions. [2024-10-24 15:31:02,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 945 transitions, 1931 flow [2024-10-24 15:31:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:02,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:02,266 INFO L175 Difference]: Start difference. First operand has 938 places, 946 transitions, 1905 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:02,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 945 transitions, 1931 flow [2024-10-24 15:31:02,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 945 transitions, 1927 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:02,277 INFO L231 Difference]: Finished difference. Result has 937 places, 945 transitions, 1903 flow [2024-10-24 15:31:02,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1903, PETRI_PLACES=937, PETRI_TRANSITIONS=945} [2024-10-24 15:31:02,279 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -56 predicate places. [2024-10-24 15:31:02,279 INFO L471 AbstractCegarLoop]: Abstraction has has 937 places, 945 transitions, 1903 flow [2024-10-24 15:31:02,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:02,280 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:02,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:31:02,281 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:02,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:02,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1469288582, now seen corresponding path program 1 times [2024-10-24 15:31:02,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:02,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345670533] [2024-10-24 15:31:02,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:02,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:02,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:02,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345670533] [2024-10-24 15:31:02,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345670533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:02,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:02,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:02,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506162125] [2024-10-24 15:31:02,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:02,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:02,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:02,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:02,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:02,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:02,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 945 transitions, 1903 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:02,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:02,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:02,442 INFO L124 PetriNetUnfolderBase]: 19/974 cut-off events. [2024-10-24 15:31:02,442 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-10-24 15:31:02,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 974 events. 19/974 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2070 event pairs, 2 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 960. Up to 17 conditions per place. [2024-10-24 15:31:02,456 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2024-10-24 15:31:02,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 944 transitions, 1929 flow [2024-10-24 15:31:02,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:02,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:02,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:02,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:02,460 INFO L175 Difference]: Start difference. First operand has 937 places, 945 transitions, 1903 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:02,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 944 transitions, 1929 flow [2024-10-24 15:31:02,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 944 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:02,471 INFO L231 Difference]: Finished difference. Result has 936 places, 944 transitions, 1901 flow [2024-10-24 15:31:02,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=936, PETRI_TRANSITIONS=944} [2024-10-24 15:31:02,473 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -57 predicate places. [2024-10-24 15:31:02,473 INFO L471 AbstractCegarLoop]: Abstraction has has 936 places, 944 transitions, 1901 flow [2024-10-24 15:31:02,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:02,474 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:02,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:31:02,474 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:02,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:02,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1133118351, now seen corresponding path program 1 times [2024-10-24 15:31:02,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:02,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481897265] [2024-10-24 15:31:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:02,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:02,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:02,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481897265] [2024-10-24 15:31:02,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481897265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:02,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:02,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:02,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897178193] [2024-10-24 15:31:02,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:02,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:02,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:02,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:02,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:02,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:02,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:02,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:02,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:02,688 INFO L124 PetriNetUnfolderBase]: 29/1209 cut-off events. [2024-10-24 15:31:02,689 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2024-10-24 15:31:02,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 1209 events. 29/1209 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3089 event pairs, 6 based on Foata normal form. 0/1065 useless extension candidates. Maximal degree in co-relation 1203. Up to 25 conditions per place. [2024-10-24 15:31:02,707 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2024-10-24 15:31:02,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 943 transitions, 1927 flow [2024-10-24 15:31:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:02,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:02,711 INFO L175 Difference]: Start difference. First operand has 936 places, 944 transitions, 1901 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:02,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 943 transitions, 1927 flow [2024-10-24 15:31:02,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 943 transitions, 1923 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:02,721 INFO L231 Difference]: Finished difference. Result has 935 places, 943 transitions, 1899 flow [2024-10-24 15:31:02,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=935, PETRI_TRANSITIONS=943} [2024-10-24 15:31:02,723 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -58 predicate places. [2024-10-24 15:31:02,723 INFO L471 AbstractCegarLoop]: Abstraction has has 935 places, 943 transitions, 1899 flow [2024-10-24 15:31:02,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:02,724 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:02,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:31:02,725 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:02,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:02,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1431934626, now seen corresponding path program 1 times [2024-10-24 15:31:02,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:02,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400899066] [2024-10-24 15:31:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:02,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:02,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:02,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400899066] [2024-10-24 15:31:02,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400899066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:02,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:02,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:02,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251347067] [2024-10-24 15:31:02,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:02,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:02,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:02,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:02,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:02,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1054 [2024-10-24 15:31:02,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:02,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1054 [2024-10-24 15:31:02,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:02,918 INFO L124 PetriNetUnfolderBase]: 29/1170 cut-off events. [2024-10-24 15:31:02,918 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2024-10-24 15:31:02,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 1170 events. 29/1170 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2940 event pairs, 6 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 1164. Up to 25 conditions per place. [2024-10-24 15:31:02,936 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 12 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2024-10-24 15:31:02,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 942 transitions, 1925 flow [2024-10-24 15:31:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2024-10-24 15:31:02,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.961100569259962 [2024-10-24 15:31:02,940 INFO L175 Difference]: Start difference. First operand has 935 places, 943 transitions, 1899 flow. Second operand 3 states and 3039 transitions. [2024-10-24 15:31:02,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 942 transitions, 1925 flow [2024-10-24 15:31:02,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 942 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:02,950 INFO L231 Difference]: Finished difference. Result has 934 places, 942 transitions, 1897 flow [2024-10-24 15:31:02,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=934, PETRI_TRANSITIONS=942} [2024-10-24 15:31:02,952 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -59 predicate places. [2024-10-24 15:31:02,952 INFO L471 AbstractCegarLoop]: Abstraction has has 934 places, 942 transitions, 1897 flow [2024-10-24 15:31:02,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.3333333333334) internal successors, (3028), 3 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:02,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:02,953 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:02,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 15:31:02,953 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:02,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1427865665, now seen corresponding path program 1 times [2024-10-24 15:31:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147321004] [2024-10-24 15:31:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:02,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:02,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147321004] [2024-10-24 15:31:02,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147321004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:02,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:02,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:02,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625413654] [2024-10-24 15:31:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:02,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:02,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:03,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:03,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:03,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1054 [2024-10-24 15:31:03,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:03,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:03,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1054 [2024-10-24 15:31:03,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:03,326 INFO L124 PetriNetUnfolderBase]: 61/2113 cut-off events. [2024-10-24 15:31:03,327 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:31:03,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 2113 events. 61/2113 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 10772 event pairs, 20 based on Foata normal form. 0/1818 useless extension candidates. Maximal degree in co-relation 2142. Up to 50 conditions per place. [2024-10-24 15:31:03,365 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 13 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2024-10-24 15:31:03,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 941 transitions, 1925 flow [2024-10-24 15:31:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3037 transitions. [2024-10-24 15:31:03,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9604680581910183 [2024-10-24 15:31:03,369 INFO L175 Difference]: Start difference. First operand has 934 places, 942 transitions, 1897 flow. Second operand 3 states and 3037 transitions. [2024-10-24 15:31:03,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 941 transitions, 1925 flow [2024-10-24 15:31:03,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 941 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:03,378 INFO L231 Difference]: Finished difference. Result has 933 places, 941 transitions, 1895 flow [2024-10-24 15:31:03,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=933, PETRI_TRANSITIONS=941} [2024-10-24 15:31:03,380 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -60 predicate places. [2024-10-24 15:31:03,380 INFO L471 AbstractCegarLoop]: Abstraction has has 933 places, 941 transitions, 1895 flow [2024-10-24 15:31:03,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:03,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:03,381 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:03,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:31:03,381 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:03,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:03,381 INFO L85 PathProgramCache]: Analyzing trace with hash -624772100, now seen corresponding path program 1 times [2024-10-24 15:31:03,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:03,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865424009] [2024-10-24 15:31:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:03,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865424009] [2024-10-24 15:31:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865424009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:03,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:03,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:31:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782554935] [2024-10-24 15:31:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:03,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:31:03,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:31:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:31:04,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 919 out of 1054 [2024-10-24 15:31:04,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 941 transitions, 1895 flow. Second operand has 6 states, 6 states have (on average 920.5) internal successors, (5523), 6 states have internal predecessors, (5523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:04,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:04,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 919 of 1054 [2024-10-24 15:31:04,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:20,247 INFO L124 PetriNetUnfolderBase]: 15256/84667 cut-off events. [2024-10-24 15:31:20,248 INFO L125 PetriNetUnfolderBase]: For 719/719 co-relation queries the response was YES. [2024-10-24 15:31:20,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107096 conditions, 84667 events. 15256/84667 cut-off events. For 719/719 co-relation queries the response was YES. Maximal size of possible extension queue 1173. Compared 1249806 event pairs, 14040 based on Foata normal form. 0/73980 useless extension candidates. Maximal degree in co-relation 107054. Up to 22026 conditions per place. [2024-10-24 15:31:20,894 INFO L140 encePairwiseOnDemand]: 1036/1054 looper letters, 87 selfloop transitions, 15 changer transitions 0/938 dead transitions. [2024-10-24 15:31:20,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 938 transitions, 2093 flow [2024-10-24 15:31:20,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:31:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:31:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5619 transitions. [2024-10-24 15:31:20,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8885199240986718 [2024-10-24 15:31:20,911 INFO L175 Difference]: Start difference. First operand has 933 places, 941 transitions, 1895 flow. Second operand 6 states and 5619 transitions. [2024-10-24 15:31:20,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 938 transitions, 2093 flow [2024-10-24 15:31:20,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 938 transitions, 2089 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:20,924 INFO L231 Difference]: Finished difference. Result has 933 places, 938 transitions, 1915 flow [2024-10-24 15:31:20,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=928, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1915, PETRI_PLACES=933, PETRI_TRANSITIONS=938} [2024-10-24 15:31:20,925 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -60 predicate places. [2024-10-24 15:31:20,926 INFO L471 AbstractCegarLoop]: Abstraction has has 933 places, 938 transitions, 1915 flow [2024-10-24 15:31:20,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 920.5) internal successors, (5523), 6 states have internal predecessors, (5523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:20,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:20,927 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:20,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 15:31:20,927 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:20,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash 291472292, now seen corresponding path program 1 times [2024-10-24 15:31:20,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:20,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399828871] [2024-10-24 15:31:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:20,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:20,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399828871] [2024-10-24 15:31:20,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399828871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:20,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:20,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:20,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896742557] [2024-10-24 15:31:20,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:20,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:20,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1054 [2024-10-24 15:31:20,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 938 transitions, 1915 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:20,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:20,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1054 [2024-10-24 15:31:20,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:21,392 INFO L124 PetriNetUnfolderBase]: 47/1835 cut-off events. [2024-10-24 15:31:21,392 INFO L125 PetriNetUnfolderBase]: For 7/13 co-relation queries the response was YES. [2024-10-24 15:31:21,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 1835 events. 47/1835 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7498 event pairs, 12 based on Foata normal form. 0/1592 useless extension candidates. Maximal degree in co-relation 1859. Up to 38 conditions per place. [2024-10-24 15:31:21,415 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 13 selfloop transitions, 2 changer transitions 0/937 dead transitions. [2024-10-24 15:31:21,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 937 transitions, 1943 flow [2024-10-24 15:31:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3037 transitions. [2024-10-24 15:31:21,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9604680581910183 [2024-10-24 15:31:21,419 INFO L175 Difference]: Start difference. First operand has 933 places, 938 transitions, 1915 flow. Second operand 3 states and 3037 transitions. [2024-10-24 15:31:21,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 937 transitions, 1943 flow [2024-10-24 15:31:21,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 929 places, 937 transitions, 1913 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:31:21,427 INFO L231 Difference]: Finished difference. Result has 929 places, 937 transitions, 1887 flow [2024-10-24 15:31:21,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=929, PETRI_TRANSITIONS=937} [2024-10-24 15:31:21,428 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -64 predicate places. [2024-10-24 15:31:21,428 INFO L471 AbstractCegarLoop]: Abstraction has has 929 places, 937 transitions, 1887 flow [2024-10-24 15:31:21,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:21,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:21,429 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:21,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 15:31:21,430 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:21,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1613090026, now seen corresponding path program 1 times [2024-10-24 15:31:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:21,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983207200] [2024-10-24 15:31:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:21,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:21,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:21,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983207200] [2024-10-24 15:31:21,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983207200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:21,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:21,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:21,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307135323] [2024-10-24 15:31:21,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:21,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:21,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:21,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1054 [2024-10-24 15:31:21,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 937 transitions, 1887 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:21,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:21,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1054 [2024-10-24 15:31:21,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:31:21,740 INFO L124 PetriNetUnfolderBase]: 52/1631 cut-off events. [2024-10-24 15:31:21,740 INFO L125 PetriNetUnfolderBase]: For 12/24 co-relation queries the response was YES. [2024-10-24 15:31:21,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1631 events. 52/1631 cut-off events. For 12/24 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6140 event pairs, 20 based on Foata normal form. 0/1424 useless extension candidates. Maximal degree in co-relation 1652. Up to 50 conditions per place. [2024-10-24 15:31:21,767 INFO L140 encePairwiseOnDemand]: 1051/1054 looper letters, 13 selfloop transitions, 2 changer transitions 0/936 dead transitions. [2024-10-24 15:31:21,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 936 transitions, 1915 flow [2024-10-24 15:31:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:31:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:31:21,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3037 transitions. [2024-10-24 15:31:21,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9604680581910183 [2024-10-24 15:31:21,771 INFO L175 Difference]: Start difference. First operand has 929 places, 937 transitions, 1887 flow. Second operand 3 states and 3037 transitions. [2024-10-24 15:31:21,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 936 transitions, 1915 flow [2024-10-24 15:31:21,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 936 transitions, 1911 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:31:21,780 INFO L231 Difference]: Finished difference. Result has 928 places, 936 transitions, 1885 flow [2024-10-24 15:31:21,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1054, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=934, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1885, PETRI_PLACES=928, PETRI_TRANSITIONS=936} [2024-10-24 15:31:21,781 INFO L277 CegarLoopForPetriNet]: 993 programPoint places, -65 predicate places. [2024-10-24 15:31:21,781 INFO L471 AbstractCegarLoop]: Abstraction has has 928 places, 936 transitions, 1885 flow [2024-10-24 15:31:21,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:21,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:31:21,782 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:31:21,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 15:31:21,782 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 190 more)] === [2024-10-24 15:31:21,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:31:21,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2120768922, now seen corresponding path program 1 times [2024-10-24 15:31:21,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:31:21,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172517008] [2024-10-24 15:31:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:31:21,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:31:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:31:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:31:21,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:31:21,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172517008] [2024-10-24 15:31:21,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172517008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:31:21,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:31:21,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:31:21,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882219134] [2024-10-24 15:31:21,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:31:21,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:31:21,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:31:21,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:31:21,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:31:22,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 919 out of 1054 [2024-10-24 15:31:22,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 936 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 921.0) internal successors, (2763), 3 states have internal predecessors, (2763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:31:22,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:31:22,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 919 of 1054 [2024-10-24 15:31:22,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand