./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/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:07:45,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:07:45,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:07:45,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:07:45,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:07:45,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:07:45,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:07:45,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:07:45,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:07:45,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:07:45,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:07:45,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:07:45,418 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:07:45,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:07:45,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:07:45,421 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:07:45,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:07:45,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:07:45,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:07:45,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:07:45,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:07:45,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:07:45,426 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:07:45,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:07:45,427 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:07:45,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:07:45,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:07:45,428 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:07:45,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:07:45,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:07:45,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:07:45,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:45,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:07:45,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:07:45,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:07:45,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:07:45,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:07:45,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:07:45,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:07:45,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:07:45,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:07:45,433 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2024-10-11 17:07:45,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:07:45,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:07:45,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:07:45,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:07:45,760 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:07:45,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-10-11 17:07:47,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:07:47,465 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:07:47,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-10-11 17:07:47,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b79c97a33/24dceb7ef8fb4fd185ef803bc352f29b/FLAG38f52af22 [2024-10-11 17:07:47,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b79c97a33/24dceb7ef8fb4fd185ef803bc352f29b [2024-10-11 17:07:47,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:07:47,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:07:47,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:07:47,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:07:47,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:07:47,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:47" (1/1) ... [2024-10-11 17:07:47,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4544c9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:47, skipping insertion in model container [2024-10-11 17:07:47,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:47" (1/1) ... [2024-10-11 17:07:47,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:07:48,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:07:48,523 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:07:48,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:07:48,666 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:07:48,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48 WrapperNode [2024-10-11 17:07:48,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:07:48,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:07:48,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:07:48,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:07:48,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,756 INFO L138 Inliner]: procedures = 370, calls = 34, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 334 [2024-10-11 17:07:48,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:07:48,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:07:48,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:07:48,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:07:48,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:07:48,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:07:48,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:07:48,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:07:48,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (1/1) ... [2024-10-11 17:07:48,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:48,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:07:48,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:07:48,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:07:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:07:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:07:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:07:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:07:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:07:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:07:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:07:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:07:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:07:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:07:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:07:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:07:48,935 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:07:49,105 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:07:49,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:07:49,757 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:07:49,757 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:07:49,790 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:07:49,791 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 17:07:49,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:49 BoogieIcfgContainer [2024-10-11 17:07:49,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:07:49,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:07:49,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:07:49,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:07:49,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:07:47" (1/3) ... [2024-10-11 17:07:49,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4469733c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:49, skipping insertion in model container [2024-10-11 17:07:49,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:48" (2/3) ... [2024-10-11 17:07:49,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4469733c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:49, skipping insertion in model container [2024-10-11 17:07:49,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:49" (3/3) ... [2024-10-11 17:07:49,805 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2024-10-11 17:07:49,823 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:07:49,823 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-11 17:07:49,824 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:07:49,920 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:07:49,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 399 places, 400 transitions, 804 flow [2024-10-11 17:07:50,175 INFO L124 PetriNetUnfolderBase]: 5/399 cut-off events. [2024-10-11 17:07:50,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:50,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 399 events. 5/399 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 361 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 271. Up to 2 conditions per place. [2024-10-11 17:07:50,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 399 places, 400 transitions, 804 flow [2024-10-11 17:07:50,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 398 places, 399 transitions, 801 flow [2024-10-11 17:07:50,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:07:50,219 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;@4354ba1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:07:50,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-10-11 17:07:50,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:07:50,229 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-11 17:07:50,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:50,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:50,231 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] [2024-10-11 17:07:50,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:50,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1931643299, now seen corresponding path program 1 times [2024-10-11 17:07:50,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:50,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101155731] [2024-10-11 17:07:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:50,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:51,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:51,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101155731] [2024-10-11 17:07:51,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101155731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:51,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:51,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:51,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368534126] [2024-10-11 17:07:51,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:51,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:51,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:51,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:51,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:51,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 400 [2024-10-11 17:07:51,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 399 transitions, 801 flow. Second operand has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:51,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:51,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 400 [2024-10-11 17:07:51,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:52,320 INFO L124 PetriNetUnfolderBase]: 365/1754 cut-off events. [2024-10-11 17:07:52,320 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:52,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2610 conditions, 1754 events. 365/1754 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9478 event pairs, 364 based on Foata normal form. 14/1631 useless extension candidates. Maximal degree in co-relation 2256. Up to 837 conditions per place. [2024-10-11 17:07:52,332 INFO L140 encePairwiseOnDemand]: 378/400 looper letters, 108 selfloop transitions, 15 changer transitions 2/392 dead transitions. [2024-10-11 17:07:52,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 392 transitions, 1033 flow [2024-10-11 17:07:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:52,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1750 transitions. [2024-10-11 17:07:52,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-10-11 17:07:52,362 INFO L175 Difference]: Start difference. First operand has 398 places, 399 transitions, 801 flow. Second operand 6 states and 1750 transitions. [2024-10-11 17:07:52,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 392 transitions, 1033 flow [2024-10-11 17:07:52,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 392 transitions, 1032 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:52,377 INFO L231 Difference]: Finished difference. Result has 399 places, 390 transitions, 812 flow [2024-10-11 17:07:52,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=812, PETRI_PLACES=399, PETRI_TRANSITIONS=390} [2024-10-11 17:07:52,385 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 1 predicate places. [2024-10-11 17:07:52,387 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 390 transitions, 812 flow [2024-10-11 17:07:52,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:52,389 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:52,389 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] [2024-10-11 17:07:52,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:07:52,390 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:52,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1456401831, now seen corresponding path program 1 times [2024-10-11 17:07:52,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:52,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002805062] [2024-10-11 17:07:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:52,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:52,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:52,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002805062] [2024-10-11 17:07:52,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002805062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:52,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:52,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:52,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202826441] [2024-10-11 17:07:52,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:52,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:52,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:52,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:52,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:53,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 400 [2024-10-11 17:07:53,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 390 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:53,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:53,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 400 [2024-10-11 17:07:53,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:53,833 INFO L124 PetriNetUnfolderBase]: 365/1749 cut-off events. [2024-10-11 17:07:53,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:53,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2620 conditions, 1749 events. 365/1749 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9450 event pairs, 364 based on Foata normal form. 0/1617 useless extension candidates. Maximal degree in co-relation 2399. Up to 837 conditions per place. [2024-10-11 17:07:53,842 INFO L140 encePairwiseOnDemand]: 382/400 looper letters, 108 selfloop transitions, 15 changer transitions 0/387 dead transitions. [2024-10-11 17:07:53,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 387 transitions, 1052 flow [2024-10-11 17:07:53,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1746 transitions. [2024-10-11 17:07:53,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7275 [2024-10-11 17:07:53,846 INFO L175 Difference]: Start difference. First operand has 399 places, 390 transitions, 812 flow. Second operand 6 states and 1746 transitions. [2024-10-11 17:07:53,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 387 transitions, 1052 flow [2024-10-11 17:07:53,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 387 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:53,854 INFO L231 Difference]: Finished difference. Result has 394 places, 387 transitions, 806 flow [2024-10-11 17:07:53,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=806, PETRI_PLACES=394, PETRI_TRANSITIONS=387} [2024-10-11 17:07:53,856 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -4 predicate places. [2024-10-11 17:07:53,856 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 387 transitions, 806 flow [2024-10-11 17:07:53,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:53,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:53,858 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] [2024-10-11 17:07:53,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:07:53,859 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:53,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:53,860 INFO L85 PathProgramCache]: Analyzing trace with hash 658482092, now seen corresponding path program 1 times [2024-10-11 17:07:53,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359692253] [2024-10-11 17:07:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:54,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:54,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359692253] [2024-10-11 17:07:54,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359692253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:54,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:54,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832088563] [2024-10-11 17:07:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:54,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:54,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:54,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 400 [2024-10-11 17:07:54,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 387 transitions, 806 flow. Second operand has 6 states, 6 states have (on average 270.8333333333333) internal successors, (1625), 6 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:54,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:54,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 400 [2024-10-11 17:07:54,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:55,210 INFO L124 PetriNetUnfolderBase]: 391/1837 cut-off events. [2024-10-11 17:07:55,211 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 17:07:55,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2764 conditions, 1837 events. 391/1837 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10255 event pairs, 390 based on Foata normal form. 0/1700 useless extension candidates. Maximal degree in co-relation 2525. Up to 903 conditions per place. [2024-10-11 17:07:55,219 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 122 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-10-11 17:07:55,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 386 transitions, 1058 flow [2024-10-11 17:07:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1736 transitions. [2024-10-11 17:07:55,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7233333333333334 [2024-10-11 17:07:55,225 INFO L175 Difference]: Start difference. First operand has 394 places, 387 transitions, 806 flow. Second operand 6 states and 1736 transitions. [2024-10-11 17:07:55,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 386 transitions, 1058 flow [2024-10-11 17:07:55,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 386 transitions, 1028 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:55,233 INFO L231 Difference]: Finished difference. Result has 393 places, 386 transitions, 784 flow [2024-10-11 17:07:55,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=393, PETRI_TRANSITIONS=386} [2024-10-11 17:07:55,235 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -5 predicate places. [2024-10-11 17:07:55,235 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 386 transitions, 784 flow [2024-10-11 17:07:55,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.8333333333333) internal successors, (1625), 6 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:55,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:55,237 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] [2024-10-11 17:07:55,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:07:55,238 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:55,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:55,239 INFO L85 PathProgramCache]: Analyzing trace with hash 33748876, now seen corresponding path program 1 times [2024-10-11 17:07:55,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:55,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367303213] [2024-10-11 17:07:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:55,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:55,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367303213] [2024-10-11 17:07:55,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367303213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:55,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:55,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:07:55,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662489728] [2024-10-11 17:07:55,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:55,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:55,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:55,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:55,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:55,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 400 [2024-10-11 17:07:55,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 386 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:55,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:55,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 400 [2024-10-11 17:07:55,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:55,446 INFO L124 PetriNetUnfolderBase]: 7/571 cut-off events. [2024-10-11 17:07:55,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:55,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 571 events. 7/571 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 630 event pairs, 6 based on Foata normal form. 1/536 useless extension candidates. Maximal degree in co-relation 467. Up to 24 conditions per place. [2024-10-11 17:07:55,449 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 10 selfloop transitions, 2 changer transitions 0/387 dead transitions. [2024-10-11 17:07:55,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 387 transitions, 810 flow [2024-10-11 17:07:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:55,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2024-10-11 17:07:55,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9733333333333334 [2024-10-11 17:07:55,452 INFO L175 Difference]: Start difference. First operand has 393 places, 386 transitions, 784 flow. Second operand 3 states and 1168 transitions. [2024-10-11 17:07:55,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 387 transitions, 810 flow [2024-10-11 17:07:55,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 387 transitions, 800 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:55,460 INFO L231 Difference]: Finished difference. Result has 391 places, 387 transitions, 786 flow [2024-10-11 17:07:55,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=786, PETRI_PLACES=391, PETRI_TRANSITIONS=387} [2024-10-11 17:07:55,461 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -7 predicate places. [2024-10-11 17:07:55,462 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 387 transitions, 786 flow [2024-10-11 17:07:55,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:55,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:55,463 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] [2024-10-11 17:07:55,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:07:55,463 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:55,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1537248548, now seen corresponding path program 1 times [2024-10-11 17:07:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425757318] [2024-10-11 17:07:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:55,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:55,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:56,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425757318] [2024-10-11 17:07:56,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425757318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:56,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:56,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444746456] [2024-10-11 17:07:56,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:56,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:56,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:56,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2024-10-11 17:07:56,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 387 transitions, 786 flow. Second operand has 6 states, 6 states have (on average 314.8333333333333) internal successors, (1889), 6 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:56,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:56,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2024-10-11 17:07:56,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:57,062 INFO L124 PetriNetUnfolderBase]: 55/812 cut-off events. [2024-10-11 17:07:57,062 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 17:07:57,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 812 events. 55/812 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2243 event pairs, 54 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 887. Up to 219 conditions per place. [2024-10-11 17:07:57,065 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 81 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-10-11 17:07:57,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 386 transitions, 956 flow [2024-10-11 17:07:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1946 transitions. [2024-10-11 17:07:57,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8108333333333333 [2024-10-11 17:07:57,070 INFO L175 Difference]: Start difference. First operand has 391 places, 387 transitions, 786 flow. Second operand 6 states and 1946 transitions. [2024-10-11 17:07:57,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 386 transitions, 956 flow [2024-10-11 17:07:57,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 386 transitions, 954 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:57,075 INFO L231 Difference]: Finished difference. Result has 394 places, 386 transitions, 792 flow [2024-10-11 17:07:57,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=394, PETRI_TRANSITIONS=386} [2024-10-11 17:07:57,077 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -4 predicate places. [2024-10-11 17:07:57,077 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 386 transitions, 792 flow [2024-10-11 17:07:57,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.8333333333333) internal successors, (1889), 6 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:57,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:57,079 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] [2024-10-11 17:07:57,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:07:57,079 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:57,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash 537033816, now seen corresponding path program 1 times [2024-10-11 17:07:57,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129480457] [2024-10-11 17:07:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:57,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:57,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:57,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129480457] [2024-10-11 17:07:57,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129480457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:57,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:57,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:57,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367405970] [2024-10-11 17:07:57,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:57,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:57,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:57,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:57,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:58,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 400 [2024-10-11 17:07:58,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 386 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:58,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:58,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 400 [2024-10-11 17:07:58,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:58,568 INFO L124 PetriNetUnfolderBase]: 37/725 cut-off events. [2024-10-11 17:07:58,569 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:07:58,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 725 events. 37/725 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1739 event pairs, 36 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 755. Up to 190 conditions per place. [2024-10-11 17:07:58,571 INFO L140 encePairwiseOnDemand]: 382/400 looper letters, 85 selfloop transitions, 15 changer transitions 0/383 dead transitions. [2024-10-11 17:07:58,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 383 transitions, 986 flow [2024-10-11 17:07:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1861 transitions. [2024-10-11 17:07:58,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7754166666666666 [2024-10-11 17:07:58,575 INFO L175 Difference]: Start difference. First operand has 394 places, 386 transitions, 792 flow. Second operand 6 states and 1861 transitions. [2024-10-11 17:07:58,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 383 transitions, 986 flow [2024-10-11 17:07:58,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 383 transitions, 976 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:58,583 INFO L231 Difference]: Finished difference. Result has 391 places, 383 transitions, 806 flow [2024-10-11 17:07:58,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=806, PETRI_PLACES=391, PETRI_TRANSITIONS=383} [2024-10-11 17:07:58,584 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -7 predicate places. [2024-10-11 17:07:58,585 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 383 transitions, 806 flow [2024-10-11 17:07:58,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:58,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:58,586 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] [2024-10-11 17:07:58,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:07:58,587 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:07:58,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:58,587 INFO L85 PathProgramCache]: Analyzing trace with hash -531508732, now seen corresponding path program 1 times [2024-10-11 17:07:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:58,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120601552] [2024-10-11 17:07:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:58,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:59,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120601552] [2024-10-11 17:07:59,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120601552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:59,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:59,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:59,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639399591] [2024-10-11 17:07:59,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:59,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:59,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:59,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:59,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:59,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 400 [2024-10-11 17:07:59,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 383 transitions, 806 flow. Second operand has 6 states, 6 states have (on average 261.1666666666667) internal successors, (1567), 6 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:59,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:59,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 400 [2024-10-11 17:07:59,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:00,087 INFO L124 PetriNetUnfolderBase]: 365/1847 cut-off events. [2024-10-11 17:08:00,087 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:00,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2786 conditions, 1847 events. 365/1847 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9463 event pairs, 364 based on Foata normal form. 0/1723 useless extension candidates. Maximal degree in co-relation 2457. Up to 890 conditions per place. [2024-10-11 17:08:00,096 INFO L140 encePairwiseOnDemand]: 382/400 looper letters, 123 selfloop transitions, 15 changer transitions 0/380 dead transitions. [2024-10-11 17:08:00,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 380 transitions, 1076 flow [2024-10-11 17:08:00,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1671 transitions. [2024-10-11 17:08:00,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.69625 [2024-10-11 17:08:00,100 INFO L175 Difference]: Start difference. First operand has 391 places, 383 transitions, 806 flow. Second operand 6 states and 1671 transitions. [2024-10-11 17:08:00,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 380 transitions, 1076 flow [2024-10-11 17:08:00,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 380 transitions, 1046 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:00,107 INFO L231 Difference]: Finished difference. Result has 388 places, 380 transitions, 800 flow [2024-10-11 17:08:00,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=388, PETRI_TRANSITIONS=380} [2024-10-11 17:08:00,109 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -10 predicate places. [2024-10-11 17:08:00,109 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 380 transitions, 800 flow [2024-10-11 17:08:00,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 261.1666666666667) internal successors, (1567), 6 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:00,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:00,110 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] [2024-10-11 17:08:00,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:08:00,111 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:00,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:00,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1361222018, now seen corresponding path program 1 times [2024-10-11 17:08:00,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:00,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887918983] [2024-10-11 17:08:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:00,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:00,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:00,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:00,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887918983] [2024-10-11 17:08:00,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887918983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:00,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:00,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800145389] [2024-10-11 17:08:00,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:01,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 400 [2024-10-11 17:08:01,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 380 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:01,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:01,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 400 [2024-10-11 17:08:01,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:01,388 INFO L124 PetriNetUnfolderBase]: 365/1843 cut-off events. [2024-10-11 17:08:01,389 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:01,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 1843 events. 365/1843 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9519 event pairs, 364 based on Foata normal form. 0/1723 useless extension candidates. Maximal degree in co-relation 2453. Up to 886 conditions per place. [2024-10-11 17:08:01,398 INFO L140 encePairwiseOnDemand]: 382/400 looper letters, 120 selfloop transitions, 15 changer transitions 0/377 dead transitions. [2024-10-11 17:08:01,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 377 transitions, 1064 flow [2024-10-11 17:08:01,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1686 transitions. [2024-10-11 17:08:01,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7025 [2024-10-11 17:08:01,404 INFO L175 Difference]: Start difference. First operand has 388 places, 380 transitions, 800 flow. Second operand 6 states and 1686 transitions. [2024-10-11 17:08:01,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 377 transitions, 1064 flow [2024-10-11 17:08:01,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 377 transitions, 1034 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:01,411 INFO L231 Difference]: Finished difference. Result has 385 places, 377 transitions, 794 flow [2024-10-11 17:08:01,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=794, PETRI_PLACES=385, PETRI_TRANSITIONS=377} [2024-10-11 17:08:01,412 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -13 predicate places. [2024-10-11 17:08:01,413 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 377 transitions, 794 flow [2024-10-11 17:08:01,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:01,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:01,415 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] [2024-10-11 17:08:01,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:08:01,415 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:01,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash 302134078, now seen corresponding path program 1 times [2024-10-11 17:08:01,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:01,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400240871] [2024-10-11 17:08:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:01,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:01,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400240871] [2024-10-11 17:08:01,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400240871] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:01,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862884914] [2024-10-11 17:08:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:01,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:01,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:01,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:01,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:08:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:01,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:08:01,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:02,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:02,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862884914] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:02,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:02,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:08:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457458449] [2024-10-11 17:08:02,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:02,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:08:02,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:08:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:08:02,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 400 [2024-10-11 17:08:02,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 377 transitions, 794 flow. Second operand has 10 states, 10 states have (on average 383.8) internal successors, (3838), 10 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:02,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 400 [2024-10-11 17:08:02,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:02,558 INFO L124 PetriNetUnfolderBase]: 7/665 cut-off events. [2024-10-11 17:08:02,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:02,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 665 events. 7/665 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 6 based on Foata normal form. 2/645 useless extension candidates. Maximal degree in co-relation 365. Up to 24 conditions per place. [2024-10-11 17:08:02,561 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 14 selfloop transitions, 9 changer transitions 0/385 dead transitions. [2024-10-11 17:08:02,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 385 transitions, 858 flow [2024-10-11 17:08:02,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:08:02,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:08:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3463 transitions. [2024-10-11 17:08:02,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9619444444444445 [2024-10-11 17:08:02,567 INFO L175 Difference]: Start difference. First operand has 385 places, 377 transitions, 794 flow. Second operand 9 states and 3463 transitions. [2024-10-11 17:08:02,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 385 transitions, 858 flow [2024-10-11 17:08:02,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 385 transitions, 828 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:02,574 INFO L231 Difference]: Finished difference. Result has 391 places, 383 transitions, 814 flow [2024-10-11 17:08:02,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=814, PETRI_PLACES=391, PETRI_TRANSITIONS=383} [2024-10-11 17:08:02,576 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, -7 predicate places. [2024-10-11 17:08:02,576 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 383 transitions, 814 flow [2024-10-11 17:08:02,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 383.8) internal successors, (3838), 10 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:02,581 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:02,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:02,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:02,782 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:02,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:02,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1119428830, now seen corresponding path program 2 times [2024-10-11 17:08:02,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:02,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126244266] [2024-10-11 17:08:02,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:02,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:03,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126244266] [2024-10-11 17:08:03,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126244266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:03,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614347151] [2024-10-11 17:08:03,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:03,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:03,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:03,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:03,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:08:03,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:03,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:03,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 17:08:03,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:03,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:08:03,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:08:03,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:03,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:08:03,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:03,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:08:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-10-11 17:08:03,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:03,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614347151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:03,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:03,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-11 17:08:03,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410344939] [2024-10-11 17:08:03,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:03,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:03,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:03,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:04,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 400 [2024-10-11 17:08:04,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 383 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:04,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:04,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 400 [2024-10-11 17:08:04,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:05,416 INFO L124 PetriNetUnfolderBase]: 257/1971 cut-off events. [2024-10-11 17:08:05,417 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 17:08:05,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2666 conditions, 1971 events. 257/1971 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10081 event pairs, 34 based on Foata normal form. 0/1844 useless extension candidates. Maximal degree in co-relation 2222. Up to 515 conditions per place. [2024-10-11 17:08:05,425 INFO L140 encePairwiseOnDemand]: 371/400 looper letters, 91 selfloop transitions, 75 changer transitions 0/460 dead transitions. [2024-10-11 17:08:05,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 460 transitions, 1300 flow [2024-10-11 17:08:05,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:05,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2010 transitions. [2024-10-11 17:08:05,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375 [2024-10-11 17:08:05,430 INFO L175 Difference]: Start difference. First operand has 391 places, 383 transitions, 814 flow. Second operand 6 states and 2010 transitions. [2024-10-11 17:08:05,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 460 transitions, 1300 flow [2024-10-11 17:08:05,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 460 transitions, 1294 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:05,439 INFO L231 Difference]: Finished difference. Result has 399 places, 451 transitions, 1288 flow [2024-10-11 17:08:05,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1288, PETRI_PLACES=399, PETRI_TRANSITIONS=451} [2024-10-11 17:08:05,440 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 1 predicate places. [2024-10-11 17:08:05,441 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 451 transitions, 1288 flow [2024-10-11 17:08:05,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:05,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:05,446 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:05,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:05,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:05,651 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:05,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:05,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1477918480, now seen corresponding path program 1 times [2024-10-11 17:08:05,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:05,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117150097] [2024-10-11 17:08:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:05,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:06,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117150097] [2024-10-11 17:08:06,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117150097] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017139190] [2024-10-11 17:08:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:06,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:06,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:06,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:08:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:06,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:08:06,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:07,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:07,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017139190] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:07,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:07,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:08:07,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108345659] [2024-10-11 17:08:07,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:07,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:08:07,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:08:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:08:07,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 400 [2024-10-11 17:08:07,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 451 transitions, 1288 flow. Second operand has 18 states, 18 states have (on average 383.8888888888889) internal successors, (6910), 18 states have internal predecessors, (6910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:07,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:07,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 400 [2024-10-11 17:08:07,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:08,460 INFO L124 PetriNetUnfolderBase]: 120/2061 cut-off events. [2024-10-11 17:08:08,461 INFO L125 PetriNetUnfolderBase]: For 184/204 co-relation queries the response was YES. [2024-10-11 17:08:08,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2736 conditions, 2061 events. 120/2061 cut-off events. For 184/204 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7307 event pairs, 21 based on Foata normal form. 4/1977 useless extension candidates. Maximal degree in co-relation 1897. Up to 207 conditions per place. [2024-10-11 17:08:08,469 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 19 selfloop transitions, 21 changer transitions 0/469 dead transitions. [2024-10-11 17:08:08,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 469 transitions, 1456 flow [2024-10-11 17:08:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:08:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:08:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8065 transitions. [2024-10-11 17:08:08,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9601190476190476 [2024-10-11 17:08:08,486 INFO L175 Difference]: Start difference. First operand has 399 places, 451 transitions, 1288 flow. Second operand 21 states and 8065 transitions. [2024-10-11 17:08:08,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 469 transitions, 1456 flow [2024-10-11 17:08:08,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 469 transitions, 1456 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:08,498 INFO L231 Difference]: Finished difference. Result has 424 places, 464 transitions, 1418 flow [2024-10-11 17:08:08,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1418, PETRI_PLACES=424, PETRI_TRANSITIONS=464} [2024-10-11 17:08:08,500 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 26 predicate places. [2024-10-11 17:08:08,500 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 464 transitions, 1418 flow [2024-10-11 17:08:08,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 383.8888888888889) internal successors, (6910), 18 states have internal predecessors, (6910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:08,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:08,504 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:08,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:08:08,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:08,705 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:08,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:08,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1431203256, now seen corresponding path program 2 times [2024-10-11 17:08:08,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:08,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275447076] [2024-10-11 17:08:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:08,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:10,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:10,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:10,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275447076] [2024-10-11 17:08:10,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275447076] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:10,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855160501] [2024-10-11 17:08:10,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:10,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:10,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:10,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:10,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:08:11,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:11,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:11,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 17:08:11,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:11,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:08:11,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:08:11,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:11,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:08:11,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:11,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:08:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2024-10-11 17:08:11,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:11,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855160501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:11,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:11,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:08:11,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688709066] [2024-10-11 17:08:11,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:11,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:11,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:11,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:08:11,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2024-10-11 17:08:11,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 464 transitions, 1418 flow. Second operand has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:11,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:11,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2024-10-11 17:08:11,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:12,547 INFO L124 PetriNetUnfolderBase]: 182/2225 cut-off events. [2024-10-11 17:08:12,548 INFO L125 PetriNetUnfolderBase]: For 451/483 co-relation queries the response was YES. [2024-10-11 17:08:12,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3487 conditions, 2225 events. 182/2225 cut-off events. For 451/483 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9134 event pairs, 54 based on Foata normal form. 0/2123 useless extension candidates. Maximal degree in co-relation 2443. Up to 564 conditions per place. [2024-10-11 17:08:12,556 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 142 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2024-10-11 17:08:12,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 463 transitions, 1710 flow [2024-10-11 17:08:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1961 transitions. [2024-10-11 17:08:12,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8170833333333334 [2024-10-11 17:08:12,562 INFO L175 Difference]: Start difference. First operand has 424 places, 464 transitions, 1418 flow. Second operand 6 states and 1961 transitions. [2024-10-11 17:08:12,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 463 transitions, 1710 flow [2024-10-11 17:08:12,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 463 transitions, 1686 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 17:08:12,577 INFO L231 Difference]: Finished difference. Result has 422 places, 463 transitions, 1402 flow [2024-10-11 17:08:12,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1402, PETRI_PLACES=422, PETRI_TRANSITIONS=463} [2024-10-11 17:08:12,579 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 24 predicate places. [2024-10-11 17:08:12,579 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 463 transitions, 1402 flow [2024-10-11 17:08:12,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:12,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:12,581 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:12,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:08:12,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 17:08:12,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:12,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:12,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1958502046, now seen corresponding path program 1 times [2024-10-11 17:08:12,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:12,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730373456] [2024-10-11 17:08:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:12,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:14,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730373456] [2024-10-11 17:08:14,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730373456] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744964890] [2024-10-11 17:08:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:14,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:14,725 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:14,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:08:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:15,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 3540 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:08:15,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:16,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:16,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:17,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744964890] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:17,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:17,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-11 17:08:17,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362935335] [2024-10-11 17:08:17,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:17,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:08:17,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:08:17,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:08:17,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 400 [2024-10-11 17:08:17,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 463 transitions, 1402 flow. Second operand has 23 states, 23 states have (on average 384.0869565217391) internal successors, (8834), 23 states have internal predecessors, (8834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:17,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:17,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 400 [2024-10-11 17:08:17,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:18,117 INFO L124 PetriNetUnfolderBase]: 120/2378 cut-off events. [2024-10-11 17:08:18,117 INFO L125 PetriNetUnfolderBase]: For 301/321 co-relation queries the response was YES. [2024-10-11 17:08:18,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3134 conditions, 2378 events. 120/2378 cut-off events. For 301/321 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7309 event pairs, 21 based on Foata normal form. 3/2294 useless extension candidates. Maximal degree in co-relation 1908. Up to 207 conditions per place. [2024-10-11 17:08:18,126 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 22 selfloop transitions, 30 changer transitions 0/480 dead transitions. [2024-10-11 17:08:18,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 480 transitions, 1628 flow [2024-10-11 17:08:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:08:18,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:08:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11514 transitions. [2024-10-11 17:08:18,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9595 [2024-10-11 17:08:18,142 INFO L175 Difference]: Start difference. First operand has 422 places, 463 transitions, 1402 flow. Second operand 30 states and 11514 transitions. [2024-10-11 17:08:18,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 480 transitions, 1628 flow [2024-10-11 17:08:18,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 480 transitions, 1618 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:18,153 INFO L231 Difference]: Finished difference. Result has 450 places, 473 transitions, 1544 flow [2024-10-11 17:08:18,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1544, PETRI_PLACES=450, PETRI_TRANSITIONS=473} [2024-10-11 17:08:18,154 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 52 predicate places. [2024-10-11 17:08:18,154 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 473 transitions, 1544 flow [2024-10-11 17:08:18,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 384.0869565217391) internal successors, (8834), 23 states have internal predecessors, (8834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:18,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:18,157 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:18,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 17:08:18,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 17:08:18,359 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:18,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:18,359 INFO L85 PathProgramCache]: Analyzing trace with hash -272546892, now seen corresponding path program 2 times [2024-10-11 17:08:18,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859153909] [2024-10-11 17:08:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:18,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-10-11 17:08:21,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:21,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859153909] [2024-10-11 17:08:21,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859153909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:21,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:21,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:21,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141796375] [2024-10-11 17:08:21,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:21,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:22,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2024-10-11 17:08:22,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 473 transitions, 1544 flow. Second operand has 6 states, 6 states have (on average 323.1666666666667) internal successors, (1939), 6 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:22,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:22,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2024-10-11 17:08:22,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:23,401 INFO L124 PetriNetUnfolderBase]: 500/3447 cut-off events. [2024-10-11 17:08:23,401 INFO L125 PetriNetUnfolderBase]: For 942/1016 co-relation queries the response was YES. [2024-10-11 17:08:23,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5897 conditions, 3447 events. 500/3447 cut-off events. For 942/1016 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16105 event pairs, 92 based on Foata normal form. 16/3306 useless extension candidates. Maximal degree in co-relation 4390. Up to 1089 conditions per place. [2024-10-11 17:08:23,415 INFO L140 encePairwiseOnDemand]: 377/400 looper letters, 155 selfloop transitions, 130 changer transitions 0/610 dead transitions. [2024-10-11 17:08:23,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 610 transitions, 2764 flow [2024-10-11 17:08:23,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2039 transitions. [2024-10-11 17:08:23,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8495833333333334 [2024-10-11 17:08:23,419 INFO L175 Difference]: Start difference. First operand has 450 places, 473 transitions, 1544 flow. Second operand 6 states and 2039 transitions. [2024-10-11 17:08:23,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 610 transitions, 2764 flow [2024-10-11 17:08:23,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 610 transitions, 2718 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-11 17:08:23,435 INFO L231 Difference]: Finished difference. Result has 442 places, 602 transitions, 2726 flow [2024-10-11 17:08:23,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=1498, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2726, PETRI_PLACES=442, PETRI_TRANSITIONS=602} [2024-10-11 17:08:23,437 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 44 predicate places. [2024-10-11 17:08:23,437 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 602 transitions, 2726 flow [2024-10-11 17:08:23,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.1666666666667) internal successors, (1939), 6 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:23,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:23,438 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:23,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:08:23,439 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:23,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:23,439 INFO L85 PathProgramCache]: Analyzing trace with hash 88473204, now seen corresponding path program 1 times [2024-10-11 17:08:23,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:23,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061038246] [2024-10-11 17:08:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:23,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-10-11 17:08:26,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:26,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061038246] [2024-10-11 17:08:26,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061038246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:26,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:26,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:26,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585073917] [2024-10-11 17:08:26,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:26,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:26,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:26,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:26,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:27,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 400 [2024-10-11 17:08:27,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 602 transitions, 2726 flow. Second operand has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:27,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:27,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 400 [2024-10-11 17:08:27,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:28,476 INFO L124 PetriNetUnfolderBase]: 776/4218 cut-off events. [2024-10-11 17:08:28,476 INFO L125 PetriNetUnfolderBase]: For 3351/3539 co-relation queries the response was YES. [2024-10-11 17:08:28,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8760 conditions, 4218 events. 776/4218 cut-off events. For 3351/3539 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22257 event pairs, 65 based on Foata normal form. 52/4105 useless extension candidates. Maximal degree in co-relation 7270. Up to 1348 conditions per place. [2024-10-11 17:08:28,496 INFO L140 encePairwiseOnDemand]: 377/400 looper letters, 276 selfloop transitions, 131 changer transitions 5/740 dead transitions. [2024-10-11 17:08:28,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 740 transitions, 4450 flow [2024-10-11 17:08:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:28,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2035 transitions. [2024-10-11 17:08:28,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8479166666666667 [2024-10-11 17:08:28,500 INFO L175 Difference]: Start difference. First operand has 442 places, 602 transitions, 2726 flow. Second operand 6 states and 2035 transitions. [2024-10-11 17:08:28,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 740 transitions, 4450 flow [2024-10-11 17:08:28,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 740 transitions, 4450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:28,522 INFO L231 Difference]: Finished difference. Result has 452 places, 730 transitions, 4206 flow [2024-10-11 17:08:28,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=2726, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4206, PETRI_PLACES=452, PETRI_TRANSITIONS=730} [2024-10-11 17:08:28,524 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 54 predicate places. [2024-10-11 17:08:28,524 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 730 transitions, 4206 flow [2024-10-11 17:08:28,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:28,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:28,525 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:28,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:08:28,525 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:28,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:28,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1859585839, now seen corresponding path program 1 times [2024-10-11 17:08:28,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099127766] [2024-10-11 17:08:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:28,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-10-11 17:08:31,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:31,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099127766] [2024-10-11 17:08:31,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099127766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:31,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:31,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:31,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815041020] [2024-10-11 17:08:31,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:31,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:31,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:31,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:31,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 400 [2024-10-11 17:08:31,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 730 transitions, 4206 flow. Second operand has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:31,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:31,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 400 [2024-10-11 17:08:31,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:33,693 INFO L124 PetriNetUnfolderBase]: 1308/5616 cut-off events. [2024-10-11 17:08:33,693 INFO L125 PetriNetUnfolderBase]: For 4855/4912 co-relation queries the response was YES. [2024-10-11 17:08:33,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13545 conditions, 5616 events. 1308/5616 cut-off events. For 4855/4912 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33881 event pairs, 369 based on Foata normal form. 11/5382 useless extension candidates. Maximal degree in co-relation 11971. Up to 2589 conditions per place. [2024-10-11 17:08:33,727 INFO L140 encePairwiseOnDemand]: 381/400 looper letters, 356 selfloop transitions, 84 changer transitions 0/809 dead transitions. [2024-10-11 17:08:33,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 809 transitions, 5484 flow [2024-10-11 17:08:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1838 transitions. [2024-10-11 17:08:33,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7658333333333334 [2024-10-11 17:08:33,729 INFO L175 Difference]: Start difference. First operand has 452 places, 730 transitions, 4206 flow. Second operand 6 states and 1838 transitions. [2024-10-11 17:08:33,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 809 transitions, 5484 flow [2024-10-11 17:08:33,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 809 transitions, 5230 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:33,764 INFO L231 Difference]: Finished difference. Result has 461 places, 801 transitions, 4742 flow [2024-10-11 17:08:33,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=3958, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4742, PETRI_PLACES=461, PETRI_TRANSITIONS=801} [2024-10-11 17:08:33,765 INFO L277 CegarLoopForPetriNet]: 398 programPoint places, 63 predicate places. [2024-10-11 17:08:33,765 INFO L471 AbstractCegarLoop]: Abstraction has has 461 places, 801 transitions, 4742 flow [2024-10-11 17:08:33,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:33,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:33,766 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:33,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:08:33,767 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:08:33,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1889045662, now seen corresponding path program 1 times [2024-10-11 17:08:33,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:33,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431981266] [2024-10-11 17:08:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:33,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 2818 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2024-10-11 17:08:54,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431981266] [2024-10-11 17:08:54,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431981266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148642140] [2024-10-11 17:08:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:54,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:54,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:54,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:08:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:55,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 125 conjuncts are in the unsatisfiable core [2024-10-11 17:08:55,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:56,054 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-11 17:08:56,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-11 17:08:56,543 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-10-11 17:08:56,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-10-11 17:08:57,323 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-10-11 17:08:57,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-10-11 17:08:57,734 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-10-11 17:08:57,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22