./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 053c2020ab3922d27be669eca0e75ac8051424727a4d2b2d1ab69540cc43f0a3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:01:53,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:01:53,351 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 06:01:53,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:01:53,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:01:53,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:01:53,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:01:53,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:01:53,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:01:53,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:01:53,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:01:53,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:01:53,401 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:01:53,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:01:53,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 06:01:53,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:01:53,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:01:53,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:01:53,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:01:53,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 06:01:53,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:01:53,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 06:01:53,406 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 06:01:53,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:01:53,407 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:01:53,407 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:01:53,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 06:01:53,408 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:01:53,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:01:53,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:01:53,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:01:53,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:01:53,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:01:53,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:01:53,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 06:01:53,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:01:53,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:01:53,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:01:53,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:01:53,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:01:53,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:01:53,414 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 053c2020ab3922d27be669eca0e75ac8051424727a4d2b2d1ab69540cc43f0a3 [2024-11-19 06:01:53,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:01:53,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:01:53,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:01:53,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:01:53,729 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:01:53,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i [2024-11-19 06:01:55,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:01:55,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:01:55,480 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i [2024-11-19 06:01:55,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276220fdd/9b976ad5f5a44838ab5219e8d0769ab9/FLAG48f33bb8b [2024-11-19 06:01:55,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276220fdd/9b976ad5f5a44838ab5219e8d0769ab9 [2024-11-19 06:01:55,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:01:55,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:01:55,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:01:55,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:01:55,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:01:55,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:01:55" (1/1) ... [2024-11-19 06:01:55,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678f902b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:55, skipping insertion in model container [2024-11-19 06:01:55,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:01:55" (1/1) ... [2024-11-19 06:01:55,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:01:56,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:01:56,263 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:01:56,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:01:56,362 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:01:56,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56 WrapperNode [2024-11-19 06:01:56,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:01:56,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:01:56,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:01:56,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:01:56,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,422 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 173 [2024-11-19 06:01:56,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:01:56,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:01:56,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:01:56,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:01:56,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:01:56,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:01:56,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:01:56,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:01:56,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (1/1) ... [2024-11-19 06:01:56,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:01:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:01:56,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:01:56,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:01:56,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 06:01:56,570 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-19 06:01:56,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-19 06:01:56,571 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-19 06:01:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 06:01:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 06:01:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:01:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:01:56,574 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 06:01:56,702 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:01:56,704 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:01:57,092 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 06:01:57,093 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:01:57,131 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:01:57,132 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-19 06:01:57,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:01:57 BoogieIcfgContainer [2024-11-19 06:01:57,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:01:57,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:01:57,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:01:57,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:01:57,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:01:55" (1/3) ... [2024-11-19 06:01:57,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b08e197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:01:57, skipping insertion in model container [2024-11-19 06:01:57,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:56" (2/3) ... [2024-11-19 06:01:57,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b08e197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:01:57, skipping insertion in model container [2024-11-19 06:01:57,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:01:57" (3/3) ... [2024-11-19 06:01:57,144 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-10.i [2024-11-19 06:01:57,161 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:01:57,162 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-19 06:01:57,163 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 06:01:57,261 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 06:01:57,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 217 transitions, 454 flow [2024-11-19 06:01:57,466 INFO L124 PetriNetUnfolderBase]: 32/556 cut-off events. [2024-11-19 06:01:57,466 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 06:01:57,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 556 events. 32/556 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2222 event pairs, 0 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 266. Up to 8 conditions per place. [2024-11-19 06:01:57,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 217 transitions, 454 flow [2024-11-19 06:01:57,490 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 217 transitions, 454 flow [2024-11-19 06:01:57,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:01:57,508 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;@423860a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:01:57,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-19 06:01:57,512 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:01:57,513 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:01:57,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:01:57,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:57,515 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] [2024-11-19 06:01:57,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:57,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:57,521 INFO L85 PathProgramCache]: Analyzing trace with hash -388360822, now seen corresponding path program 1 times [2024-11-19 06:01:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:57,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621496062] [2024-11-19 06:01:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:57,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:57,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:57,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621496062] [2024-11-19 06:01:57,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621496062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:57,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:57,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:57,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573865355] [2024-11-19 06:01:57,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:57,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:57,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:57,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:57,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:57,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-19 06:01:57,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 217 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:57,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:57,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-19 06:01:57,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:58,123 INFO L124 PetriNetUnfolderBase]: 85/973 cut-off events. [2024-11-19 06:01:58,123 INFO L125 PetriNetUnfolderBase]: For 42/44 co-relation queries the response was YES. [2024-11-19 06:01:58,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 973 events. 85/973 cut-off events. For 42/44 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5314 event pairs, 64 based on Foata normal form. 45/837 useless extension candidates. Maximal degree in co-relation 872. Up to 207 conditions per place. [2024-11-19 06:01:58,137 INFO L140 encePairwiseOnDemand]: 207/217 looper letters, 31 selfloop transitions, 2 changer transitions 0/200 dead transitions. [2024-11-19 06:01:58,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 200 transitions, 486 flow [2024-11-19 06:01:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-19 06:01:58,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602150537634409 [2024-11-19 06:01:58,156 INFO L175 Difference]: Start difference. First operand has 209 places, 217 transitions, 454 flow. Second operand 3 states and 560 transitions. [2024-11-19 06:01:58,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 200 transitions, 486 flow [2024-11-19 06:01:58,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 200 transitions, 486 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:01:58,168 INFO L231 Difference]: Finished difference. Result has 200 places, 200 transitions, 424 flow [2024-11-19 06:01:58,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=200, PETRI_TRANSITIONS=200} [2024-11-19 06:01:58,177 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2024-11-19 06:01:58,177 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 200 transitions, 424 flow [2024-11-19 06:01:58,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:58,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:58,178 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] [2024-11-19 06:01:58,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:01:58,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:58,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash 985080266, now seen corresponding path program 1 times [2024-11-19 06:01:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:58,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879507851] [2024-11-19 06:01:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:58,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:58,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:58,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879507851] [2024-11-19 06:01:58,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879507851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:58,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:58,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:58,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446033124] [2024-11-19 06:01:58,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:58,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:58,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:58,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:58,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:58,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 217 [2024-11-19 06:01:58,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 200 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:58,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:58,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 217 [2024-11-19 06:01:58,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:58,558 INFO L124 PetriNetUnfolderBase]: 117/984 cut-off events. [2024-11-19 06:01:58,558 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-19 06:01:58,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 984 events. 117/984 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5299 event pairs, 78 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 1283. Up to 243 conditions per place. [2024-11-19 06:01:58,568 INFO L140 encePairwiseOnDemand]: 194/217 looper letters, 31 selfloop transitions, 11 changer transitions 0/190 dead transitions. [2024-11-19 06:01:58,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 190 transitions, 488 flow [2024-11-19 06:01:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2024-11-19 06:01:58,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7972350230414746 [2024-11-19 06:01:58,572 INFO L175 Difference]: Start difference. First operand has 200 places, 200 transitions, 424 flow. Second operand 3 states and 519 transitions. [2024-11-19 06:01:58,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 190 transitions, 488 flow [2024-11-19 06:01:58,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 190 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:58,577 INFO L231 Difference]: Finished difference. Result has 188 places, 188 transitions, 418 flow [2024-11-19 06:01:58,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=188, PETRI_TRANSITIONS=188} [2024-11-19 06:01:58,580 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -21 predicate places. [2024-11-19 06:01:58,580 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 188 transitions, 418 flow [2024-11-19 06:01:58,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:58,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:58,581 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] [2024-11-19 06:01:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:01:58,582 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:58,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1613330187, now seen corresponding path program 1 times [2024-11-19 06:01:58,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:58,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337110979] [2024-11-19 06:01:58,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:58,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:58,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:58,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337110979] [2024-11-19 06:01:58,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337110979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:58,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:58,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:01:58,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18349894] [2024-11-19 06:01:58,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:58,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:58,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:58,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:58,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:58,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 217 [2024-11-19 06:01:58,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 188 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:58,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:58,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 217 [2024-11-19 06:01:58,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:58,886 INFO L124 PetriNetUnfolderBase]: 27/504 cut-off events. [2024-11-19 06:01:58,887 INFO L125 PetriNetUnfolderBase]: For 32/36 co-relation queries the response was YES. [2024-11-19 06:01:58,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 504 events. 27/504 cut-off events. For 32/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1534 event pairs, 10 based on Foata normal form. 6/459 useless extension candidates. Maximal degree in co-relation 436. Up to 39 conditions per place. [2024-11-19 06:01:58,891 INFO L140 encePairwiseOnDemand]: 205/217 looper letters, 17 selfloop transitions, 8 changer transitions 9/193 dead transitions. [2024-11-19 06:01:58,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 193 transitions, 486 flow [2024-11-19 06:01:58,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:58,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-11-19 06:01:58,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9032258064516129 [2024-11-19 06:01:58,893 INFO L175 Difference]: Start difference. First operand has 188 places, 188 transitions, 418 flow. Second operand 3 states and 588 transitions. [2024-11-19 06:01:58,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 193 transitions, 486 flow [2024-11-19 06:01:58,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:58,899 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 412 flow [2024-11-19 06:01:58,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=189, PETRI_TRANSITIONS=180} [2024-11-19 06:01:58,900 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -20 predicate places. [2024-11-19 06:01:58,901 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 412 flow [2024-11-19 06:01:58,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:58,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:58,902 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] [2024-11-19 06:01:58,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:01:58,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:58,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:58,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2042480670, now seen corresponding path program 1 times [2024-11-19 06:01:58,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:58,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649912860] [2024-11-19 06:01:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:58,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:59,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649912860] [2024-11-19 06:01:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649912860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:59,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:59,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:01:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347901157] [2024-11-19 06:01:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:59,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:01:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:59,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:01:59,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:01:59,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 217 [2024-11-19 06:01:59,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 180 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:59,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:59,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 217 [2024-11-19 06:01:59,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:59,773 INFO L124 PetriNetUnfolderBase]: 83/713 cut-off events. [2024-11-19 06:01:59,774 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-19 06:01:59,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 713 events. 83/713 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2700 event pairs, 5 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 794. Up to 193 conditions per place. [2024-11-19 06:01:59,781 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 42 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-11-19 06:01:59,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 187 transitions, 520 flow [2024-11-19 06:01:59,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:01:59,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:01:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1043 transitions. [2024-11-19 06:01:59,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8010752688172043 [2024-11-19 06:01:59,784 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 412 flow. Second operand 6 states and 1043 transitions. [2024-11-19 06:01:59,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 187 transitions, 520 flow [2024-11-19 06:01:59,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 187 transitions, 512 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:01:59,791 INFO L231 Difference]: Finished difference. Result has 183 places, 179 transitions, 412 flow [2024-11-19 06:01:59,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=412, PETRI_PLACES=183, PETRI_TRANSITIONS=179} [2024-11-19 06:01:59,794 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -26 predicate places. [2024-11-19 06:01:59,794 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 179 transitions, 412 flow [2024-11-19 06:01:59,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:59,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:59,795 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] [2024-11-19 06:01:59,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:01:59,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:59,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:59,797 INFO L85 PathProgramCache]: Analyzing trace with hash 192606770, now seen corresponding path program 1 times [2024-11-19 06:01:59,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:59,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368804192] [2024-11-19 06:01:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:59,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:59,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:59,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368804192] [2024-11-19 06:01:59,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368804192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:59,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:59,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:59,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592652880] [2024-11-19 06:01:59,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:59,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:59,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:59,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:59,978 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-19 06:01:59,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 179 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:01:59,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:59,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-19 06:01:59,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:00,074 INFO L124 PetriNetUnfolderBase]: 63/695 cut-off events. [2024-11-19 06:02:00,074 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-19 06:02:00,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 695 events. 63/695 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2655 event pairs, 49 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 728. Up to 151 conditions per place. [2024-11-19 06:02:00,079 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 32 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2024-11-19 06:02:00,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 180 transitions, 482 flow [2024-11-19 06:02:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-11-19 06:02:00,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8509984639016898 [2024-11-19 06:02:00,082 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 412 flow. Second operand 3 states and 554 transitions. [2024-11-19 06:02:00,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 180 transitions, 482 flow [2024-11-19 06:02:00,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 180 transitions, 472 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:02:00,087 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 404 flow [2024-11-19 06:02:00,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2024-11-19 06:02:00,089 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -30 predicate places. [2024-11-19 06:02:00,090 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 404 flow [2024-11-19 06:02:00,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:00,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:00,091 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:00,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:02:00,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:00,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:00,093 INFO L85 PathProgramCache]: Analyzing trace with hash -480403281, now seen corresponding path program 1 times [2024-11-19 06:02:00,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:00,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212190355] [2024-11-19 06:02:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:00,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:00,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:00,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212190355] [2024-11-19 06:02:00,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212190355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:02:00,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543444569] [2024-11-19 06:02:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:00,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:00,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:00,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:02:00,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:02:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:00,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 06:02:00,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:02:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 06:02:00,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:02:00,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543444569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:00,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:02:00,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 06:02:00,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922712733] [2024-11-19 06:02:00,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:00,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:00,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:00,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:00,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:00,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-19 06:02:00,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:00,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:00,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-19 06:02:00,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:00,561 INFO L124 PetriNetUnfolderBase]: 63/679 cut-off events. [2024-11-19 06:02:00,561 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 06:02:00,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 679 events. 63/679 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2557 event pairs, 49 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 702. Up to 151 conditions per place. [2024-11-19 06:02:00,565 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 32 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-11-19 06:02:00,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 179 transitions, 474 flow [2024-11-19 06:02:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-11-19 06:02:00,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8509984639016898 [2024-11-19 06:02:00,568 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 404 flow. Second operand 3 states and 554 transitions. [2024-11-19 06:02:00,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 179 transitions, 474 flow [2024-11-19 06:02:00,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 179 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:00,572 INFO L231 Difference]: Finished difference. Result has 178 places, 177 transitions, 402 flow [2024-11-19 06:02:00,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=178, PETRI_TRANSITIONS=177} [2024-11-19 06:02:00,573 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -31 predicate places. [2024-11-19 06:02:00,573 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 177 transitions, 402 flow [2024-11-19 06:02:00,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:00,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:00,575 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:00,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:02:00,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 06:02:00,776 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:00,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:00,777 INFO L85 PathProgramCache]: Analyzing trace with hash -297958305, now seen corresponding path program 1 times [2024-11-19 06:02:00,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:00,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724113220] [2024-11-19 06:02:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:00,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:00,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:02:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:00,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:02:00,865 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:02:00,866 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-19 06:02:00,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-19 06:02:00,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-19 06:02:00,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-19 06:02:00,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-19 06:02:00,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-19 06:02:00,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-19 06:02:00,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-19 06:02:00,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-19 06:02:00,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-19 06:02:00,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-19 06:02:00,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-19 06:02:00,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-19 06:02:00,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-19 06:02:00,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-19 06:02:00,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-19 06:02:00,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-19 06:02:00,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-19 06:02:00,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-19 06:02:00,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-19 06:02:00,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-19 06:02:00,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-19 06:02:00,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-19 06:02:00,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-19 06:02:00,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-19 06:02:00,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-19 06:02:00,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-19 06:02:00,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-19 06:02:00,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-19 06:02:00,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-19 06:02:00,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-19 06:02:00,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-11-19 06:02:00,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-19 06:02:00,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-19 06:02:00,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-19 06:02:00,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-19 06:02:00,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-19 06:02:00,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-19 06:02:00,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:02:00,879 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:00,882 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:02:00,882 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 06:02:00,925 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-19 06:02:00,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 270 transitions, 584 flow [2024-11-19 06:02:01,151 INFO L124 PetriNetUnfolderBase]: 131/1806 cut-off events. [2024-11-19 06:02:01,153 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-19 06:02:01,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1806 events. 131/1806 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10386 event pairs, 2 based on Foata normal form. 0/1423 useless extension candidates. Maximal degree in co-relation 1024. Up to 32 conditions per place. [2024-11-19 06:02:01,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 270 transitions, 584 flow [2024-11-19 06:02:01,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 270 transitions, 584 flow [2024-11-19 06:02:01,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:02:01,187 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;@423860a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:02:01,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-19 06:02:01,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:02:01,190 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:02:01,190 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:02:01,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:01,190 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] [2024-11-19 06:02:01,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:01,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:01,191 INFO L85 PathProgramCache]: Analyzing trace with hash 640713866, now seen corresponding path program 1 times [2024-11-19 06:02:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132489303] [2024-11-19 06:02:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:01,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:01,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:01,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132489303] [2024-11-19 06:02:01,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132489303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:01,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:01,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:01,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925878342] [2024-11-19 06:02:01,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:01,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:01,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:01,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:01,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-11-19 06:02:01,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 270 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:01,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:01,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-11-19 06:02:01,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:02,609 INFO L124 PetriNetUnfolderBase]: 1200/6906 cut-off events. [2024-11-19 06:02:02,609 INFO L125 PetriNetUnfolderBase]: For 652/686 co-relation queries the response was YES. [2024-11-19 06:02:02,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9251 conditions, 6906 events. 1200/6906 cut-off events. For 652/686 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 60434 event pairs, 985 based on Foata normal form. 836/6537 useless extension candidates. Maximal degree in co-relation 4715. Up to 2070 conditions per place. [2024-11-19 06:02:02,720 INFO L140 encePairwiseOnDemand]: 257/270 looper letters, 39 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2024-11-19 06:02:02,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 241 transitions, 608 flow [2024-11-19 06:02:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-19 06:02:02,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2024-11-19 06:02:02,724 INFO L175 Difference]: Start difference. First operand has 257 places, 270 transitions, 584 flow. Second operand 3 states and 688 transitions. [2024-11-19 06:02:02,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 241 transitions, 608 flow [2024-11-19 06:02:02,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 241 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:02,730 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 530 flow [2024-11-19 06:02:02,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=238, PETRI_TRANSITIONS=241} [2024-11-19 06:02:02,731 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -19 predicate places. [2024-11-19 06:02:02,732 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 530 flow [2024-11-19 06:02:02,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:02,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:02,732 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] [2024-11-19 06:02:02,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:02:02,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:02,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:02,733 INFO L85 PathProgramCache]: Analyzing trace with hash 672817750, now seen corresponding path program 1 times [2024-11-19 06:02:02,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225429884] [2024-11-19 06:02:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:02,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:02,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:02,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225429884] [2024-11-19 06:02:02,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225429884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:02,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:02,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:02,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847346184] [2024-11-19 06:02:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:02,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:02,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:02,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:02,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:02,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 270 [2024-11-19 06:02:02,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 241 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:02,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:02,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 270 [2024-11-19 06:02:02,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:04,078 INFO L124 PetriNetUnfolderBase]: 1650/7274 cut-off events. [2024-11-19 06:02:04,078 INFO L125 PetriNetUnfolderBase]: For 671/689 co-relation queries the response was YES. [2024-11-19 06:02:04,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10494 conditions, 7274 events. 1650/7274 cut-off events. For 671/689 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 60728 event pairs, 1169 based on Foata normal form. 0/6508 useless extension candidates. Maximal degree in co-relation 10463. Up to 2412 conditions per place. [2024-11-19 06:02:04,159 INFO L140 encePairwiseOnDemand]: 247/270 looper letters, 41 selfloop transitions, 11 changer transitions 0/233 dead transitions. [2024-11-19 06:02:04,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 233 transitions, 618 flow [2024-11-19 06:02:04,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:04,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:04,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2024-11-19 06:02:04,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7975308641975308 [2024-11-19 06:02:04,162 INFO L175 Difference]: Start difference. First operand has 238 places, 241 transitions, 530 flow. Second operand 3 states and 646 transitions. [2024-11-19 06:02:04,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 233 transitions, 618 flow [2024-11-19 06:02:04,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 233 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:04,168 INFO L231 Difference]: Finished difference. Result has 226 places, 229 transitions, 524 flow [2024-11-19 06:02:04,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=226, PETRI_TRANSITIONS=229} [2024-11-19 06:02:04,169 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -31 predicate places. [2024-11-19 06:02:04,169 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 229 transitions, 524 flow [2024-11-19 06:02:04,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:04,170 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] [2024-11-19 06:02:04,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:02:04,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:04,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -861913611, now seen corresponding path program 1 times [2024-11-19 06:02:04,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:04,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686533222] [2024-11-19 06:02:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:04,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:04,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:04,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:04,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686533222] [2024-11-19 06:02:04,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686533222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:04,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:04,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:02:04,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622357384] [2024-11-19 06:02:04,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:04,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:04,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:04,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:04,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:04,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 270 [2024-11-19 06:02:04,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 229 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:04,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 270 [2024-11-19 06:02:04,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:05,222 INFO L124 PetriNetUnfolderBase]: 630/4749 cut-off events. [2024-11-19 06:02:05,222 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-11-19 06:02:05,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6431 conditions, 4749 events. 630/4749 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 39440 event pairs, 228 based on Foata normal form. 42/4288 useless extension candidates. Maximal degree in co-relation 4117. Up to 682 conditions per place. [2024-11-19 06:02:05,262 INFO L140 encePairwiseOnDemand]: 258/270 looper letters, 37 selfloop transitions, 8 changer transitions 0/245 dead transitions. [2024-11-19 06:02:05,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 245 transitions, 670 flow [2024-11-19 06:02:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:05,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2024-11-19 06:02:05,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938271604938272 [2024-11-19 06:02:05,265 INFO L175 Difference]: Start difference. First operand has 226 places, 229 transitions, 524 flow. Second operand 3 states and 724 transitions. [2024-11-19 06:02:05,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 245 transitions, 670 flow [2024-11-19 06:02:05,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 245 transitions, 648 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:05,272 INFO L231 Difference]: Finished difference. Result has 227 places, 233 transitions, 550 flow [2024-11-19 06:02:05,272 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=227, PETRI_TRANSITIONS=233} [2024-11-19 06:02:05,273 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -30 predicate places. [2024-11-19 06:02:05,273 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 233 transitions, 550 flow [2024-11-19 06:02:05,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:05,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:05,274 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] [2024-11-19 06:02:05,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:02:05,274 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:05,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:05,274 INFO L85 PathProgramCache]: Analyzing trace with hash -2085998738, now seen corresponding path program 1 times [2024-11-19 06:02:05,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:05,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662031406] [2024-11-19 06:02:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:05,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:05,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662031406] [2024-11-19 06:02:05,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662031406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:05,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:05,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:02:05,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767461067] [2024-11-19 06:02:05,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:05,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:02:05,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:05,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:02:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:05,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 270 [2024-11-19 06:02:05,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 233 transitions, 550 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:05,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:05,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 270 [2024-11-19 06:02:05,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:06,865 INFO L124 PetriNetUnfolderBase]: 1558/7334 cut-off events. [2024-11-19 06:02:06,866 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-11-19 06:02:06,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10976 conditions, 7334 events. 1558/7334 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 61182 event pairs, 74 based on Foata normal form. 0/6827 useless extension candidates. Maximal degree in co-relation 4981. Up to 2728 conditions per place. [2024-11-19 06:02:06,930 INFO L140 encePairwiseOnDemand]: 264/270 looper letters, 62 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2024-11-19 06:02:06,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 248 transitions, 716 flow [2024-11-19 06:02:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:02:06,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:02:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2024-11-19 06:02:06,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7993827160493827 [2024-11-19 06:02:06,935 INFO L175 Difference]: Start difference. First operand has 227 places, 233 transitions, 550 flow. Second operand 6 states and 1295 transitions. [2024-11-19 06:02:06,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 248 transitions, 716 flow [2024-11-19 06:02:07,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 248 transitions, 708 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:02:07,033 INFO L231 Difference]: Finished difference. Result has 230 places, 232 transitions, 552 flow [2024-11-19 06:02:07,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=230, PETRI_TRANSITIONS=232} [2024-11-19 06:02:07,035 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -27 predicate places. [2024-11-19 06:02:07,036 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 232 transitions, 552 flow [2024-11-19 06:02:07,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:07,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:07,037 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] [2024-11-19 06:02:07,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 06:02:07,037 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:07,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1106464142, now seen corresponding path program 1 times [2024-11-19 06:02:07,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517360055] [2024-11-19 06:02:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:07,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:07,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:07,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517360055] [2024-11-19 06:02:07,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517360055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:07,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:07,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449064234] [2024-11-19 06:02:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:07,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:07,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-11-19 06:02:07,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 232 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:07,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:07,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-11-19 06:02:07,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:08,316 INFO L124 PetriNetUnfolderBase]: 1177/6824 cut-off events. [2024-11-19 06:02:08,316 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-11-19 06:02:08,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9631 conditions, 6824 events. 1177/6824 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 58480 event pairs, 990 based on Foata normal form. 0/6258 useless extension candidates. Maximal degree in co-relation 4313. Up to 2049 conditions per place. [2024-11-19 06:02:08,380 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 43 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-11-19 06:02:08,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 235 transitions, 648 flow [2024-11-19 06:02:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-11-19 06:02:08,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419753086419753 [2024-11-19 06:02:08,382 INFO L175 Difference]: Start difference. First operand has 230 places, 232 transitions, 552 flow. Second operand 3 states and 682 transitions. [2024-11-19 06:02:08,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 235 transitions, 648 flow [2024-11-19 06:02:08,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 235 transitions, 636 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:02:08,388 INFO L231 Difference]: Finished difference. Result has 226 places, 231 transitions, 542 flow [2024-11-19 06:02:08,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=226, PETRI_TRANSITIONS=231} [2024-11-19 06:02:08,389 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -31 predicate places. [2024-11-19 06:02:08,390 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 231 transitions, 542 flow [2024-11-19 06:02:08,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:08,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:08,391 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:08,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:02:08,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:08,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:08,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1971927073, now seen corresponding path program 1 times [2024-11-19 06:02:08,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:08,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37379641] [2024-11-19 06:02:08,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:08,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:08,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:08,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37379641] [2024-11-19 06:02:08,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37379641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:02:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122531501] [2024-11-19 06:02:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:08,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:08,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:08,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:02:08,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:02:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:08,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 06:02:08,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:02:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 06:02:08,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:02:08,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122531501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:08,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:02:08,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 06:02:08,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200471922] [2024-11-19 06:02:08,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:08,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:08,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:08,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:08,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:08,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-11-19 06:02:08,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 231 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:08,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:08,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-11-19 06:02:08,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:09,861 INFO L124 PetriNetUnfolderBase]: 1177/6779 cut-off events. [2024-11-19 06:02:09,861 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-11-19 06:02:09,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9548 conditions, 6779 events. 1177/6779 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 58138 event pairs, 990 based on Foata normal form. 0/6210 useless extension candidates. Maximal degree in co-relation 4812. Up to 2049 conditions per place. [2024-11-19 06:02:09,900 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 43 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-19 06:02:09,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 234 transitions, 638 flow [2024-11-19 06:02:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-11-19 06:02:09,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419753086419753 [2024-11-19 06:02:09,903 INFO L175 Difference]: Start difference. First operand has 226 places, 231 transitions, 542 flow. Second operand 3 states and 682 transitions. [2024-11-19 06:02:09,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 234 transitions, 638 flow [2024-11-19 06:02:09,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 234 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:09,911 INFO L231 Difference]: Finished difference. Result has 225 places, 230 transitions, 540 flow [2024-11-19 06:02:09,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=225, PETRI_TRANSITIONS=230} [2024-11-19 06:02:09,912 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -32 predicate places. [2024-11-19 06:02:09,912 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 230 transitions, 540 flow [2024-11-19 06:02:09,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:09,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:09,913 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:09,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:02:10,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 06:02:10,114 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:10,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1588522226, now seen corresponding path program 1 times [2024-11-19 06:02:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:10,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584323017] [2024-11-19 06:02:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:10,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:10,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584323017] [2024-11-19 06:02:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584323017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:02:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484097812] [2024-11-19 06:02:10,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:10,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:10,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:10,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:02:10,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:02:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:10,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 06:02:10,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:02:10,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:10,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:02:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:10,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484097812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:02:10,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:02:10,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 06:02:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419680532] [2024-11-19 06:02:10,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:02:10,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 06:02:10,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:10,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 06:02:10,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:02:10,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 270 [2024-11-19 06:02:10,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 230 transitions, 540 flow. Second operand has 10 states, 10 states have (on average 219.3) internal successors, (2193), 10 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:10,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:10,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 270 [2024-11-19 06:02:10,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:10,935 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-11-19 06:02:10,935 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 06:02:10,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 390 events. 62/390 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1452 event pairs, 0 based on Foata normal form. 12/402 useless extension candidates. Maximal degree in co-relation 540. Up to 42 conditions per place. [2024-11-19 06:02:10,937 INFO L140 encePairwiseOnDemand]: 265/270 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-11-19 06:02:10,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-11-19 06:02:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 06:02:10,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 06:02:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1991 transitions. [2024-11-19 06:02:10,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8193415637860082 [2024-11-19 06:02:10,944 INFO L175 Difference]: Start difference. First operand has 225 places, 230 transitions, 540 flow. Second operand 9 states and 1991 transitions. [2024-11-19 06:02:10,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-11-19 06:02:10,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:10,946 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-11-19 06:02:10,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-19 06:02:10,947 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -182 predicate places. [2024-11-19 06:02:10,947 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-11-19 06:02:10,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 219.3) internal successors, (2193), 10 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:10,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:10,950 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:10,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 06:02:11,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:11,154 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:11,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:11,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2076479318, now seen corresponding path program 1 times [2024-11-19 06:02:11,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:11,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162143721] [2024-11-19 06:02:11,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:11,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:02:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:11,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:02:11,208 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:02:11,209 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-19 06:02:11,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-19 06:02:11,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-19 06:02:11,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-19 06:02:11,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-19 06:02:11,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-19 06:02:11,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-11-19 06:02:11,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-19 06:02:11,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-19 06:02:11,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-19 06:02:11,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-19 06:02:11,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-19 06:02:11,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-19 06:02:11,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-19 06:02:11,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-19 06:02:11,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-19 06:02:11,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-19 06:02:11,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-19 06:02:11,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-19 06:02:11,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-19 06:02:11,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-19 06:02:11,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-19 06:02:11,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-19 06:02:11,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-19 06:02:11,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-19 06:02:11,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-19 06:02:11,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-19 06:02:11,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-19 06:02:11,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-19 06:02:11,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-19 06:02:11,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:02:11,216 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:11,217 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:02:11,217 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 06:02:11,256 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-19 06:02:11,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 323 transitions, 718 flow [2024-11-19 06:02:12,217 INFO L124 PetriNetUnfolderBase]: 544/5922 cut-off events. [2024-11-19 06:02:12,218 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-19 06:02:12,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6358 conditions, 5922 events. 544/5922 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 46424 event pairs, 64 based on Foata normal form. 0/4701 useless extension candidates. Maximal degree in co-relation 3404. Up to 192 conditions per place. [2024-11-19 06:02:12,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 323 transitions, 718 flow [2024-11-19 06:02:12,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 323 transitions, 718 flow [2024-11-19 06:02:12,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:02:12,293 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;@423860a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:02:12,293 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-19 06:02:12,295 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:02:12,295 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:02:12,295 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:02:12,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:12,295 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] [2024-11-19 06:02:12,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:12,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1184181706, now seen corresponding path program 1 times [2024-11-19 06:02:12,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:12,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537099039] [2024-11-19 06:02:12,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:12,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:12,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537099039] [2024-11-19 06:02:12,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537099039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:12,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:12,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:12,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990759661] [2024-11-19 06:02:12,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:12,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:12,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:12,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 323 [2024-11-19 06:02:12,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 323 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:12,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:12,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 323 [2024-11-19 06:02:12,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:21,818 INFO L124 PetriNetUnfolderBase]: 12815/48824 cut-off events. [2024-11-19 06:02:21,819 INFO L125 PetriNetUnfolderBase]: For 7722/8268 co-relation queries the response was YES. [2024-11-19 06:02:22,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70847 conditions, 48824 events. 12815/48824 cut-off events. For 7722/8268 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 564563 event pairs, 10886 based on Foata normal form. 9883/50645 useless extension candidates. Maximal degree in co-relation 36613. Up to 19303 conditions per place. [2024-11-19 06:02:22,637 INFO L140 encePairwiseOnDemand]: 307/323 looper letters, 47 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-11-19 06:02:22,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 282 transitions, 734 flow [2024-11-19 06:02:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2024-11-19 06:02:22,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2024-11-19 06:02:22,640 INFO L175 Difference]: Start difference. First operand has 305 places, 323 transitions, 718 flow. Second operand 3 states and 816 transitions. [2024-11-19 06:02:22,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 282 transitions, 734 flow [2024-11-19 06:02:22,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 282 transitions, 734 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:22,653 INFO L231 Difference]: Finished difference. Result has 276 places, 282 transitions, 640 flow [2024-11-19 06:02:22,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=276, PETRI_TRANSITIONS=282} [2024-11-19 06:02:22,655 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -29 predicate places. [2024-11-19 06:02:22,655 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 282 transitions, 640 flow [2024-11-19 06:02:22,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:22,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:22,656 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] [2024-11-19 06:02:22,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:02:22,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:22,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:22,657 INFO L85 PathProgramCache]: Analyzing trace with hash -903147977, now seen corresponding path program 1 times [2024-11-19 06:02:22,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:22,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859465123] [2024-11-19 06:02:22,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:22,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:22,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:22,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859465123] [2024-11-19 06:02:22,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859465123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:22,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:22,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:22,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103340548] [2024-11-19 06:02:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:22,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:22,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:22,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:22,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:22,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 323 [2024-11-19 06:02:22,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 282 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:22,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:22,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 323 [2024-11-19 06:02:22,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:32,969 INFO L124 PetriNetUnfolderBase]: 17515/54357 cut-off events. [2024-11-19 06:02:32,969 INFO L125 PetriNetUnfolderBase]: For 7723/8171 co-relation queries the response was YES. [2024-11-19 06:02:33,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83924 conditions, 54357 events. 17515/54357 cut-off events. For 7723/8171 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 587755 event pairs, 12762 based on Foata normal form. 0/49200 useless extension candidates. Maximal degree in co-relation 83891. Up to 22195 conditions per place. [2024-11-19 06:02:33,870 INFO L140 encePairwiseOnDemand]: 300/323 looper letters, 51 selfloop transitions, 11 changer transitions 0/276 dead transitions. [2024-11-19 06:02:33,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 276 transitions, 752 flow [2024-11-19 06:02:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2024-11-19 06:02:33,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7977296181630547 [2024-11-19 06:02:33,872 INFO L175 Difference]: Start difference. First operand has 276 places, 282 transitions, 640 flow. Second operand 3 states and 773 transitions. [2024-11-19 06:02:33,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 276 transitions, 752 flow [2024-11-19 06:02:33,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 276 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:33,885 INFO L231 Difference]: Finished difference. Result has 264 places, 270 transitions, 634 flow [2024-11-19 06:02:33,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=264, PETRI_TRANSITIONS=270} [2024-11-19 06:02:33,886 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -41 predicate places. [2024-11-19 06:02:33,886 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 270 transitions, 634 flow [2024-11-19 06:02:33,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:33,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:33,887 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] [2024-11-19 06:02:33,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 06:02:33,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:33,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1400313781, now seen corresponding path program 1 times [2024-11-19 06:02:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:33,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052443682] [2024-11-19 06:02:33,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:33,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:33,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:33,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052443682] [2024-11-19 06:02:33,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052443682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:33,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:33,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:02:33,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367799925] [2024-11-19 06:02:33,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:33,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:33,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:33,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:33,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:34,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 323 [2024-11-19 06:02:34,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 270 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:34,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:34,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 323 [2024-11-19 06:02:34,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:40,452 INFO L124 PetriNetUnfolderBase]: 8365/37548 cut-off events. [2024-11-19 06:02:40,453 INFO L125 PetriNetUnfolderBase]: For 10106/10660 co-relation queries the response was YES. [2024-11-19 06:02:40,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55379 conditions, 37548 events. 8365/37548 cut-off events. For 10106/10660 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 454844 event pairs, 3344 based on Foata normal form. 300/33580 useless extension candidates. Maximal degree in co-relation 37016. Up to 8245 conditions per place. [2024-11-19 06:02:40,961 INFO L140 encePairwiseOnDemand]: 311/323 looper letters, 51 selfloop transitions, 8 changer transitions 0/292 dead transitions. [2024-11-19 06:02:40,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 292 transitions, 832 flow [2024-11-19 06:02:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:40,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 855 transitions. [2024-11-19 06:02:40,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-11-19 06:02:40,964 INFO L175 Difference]: Start difference. First operand has 264 places, 270 transitions, 634 flow. Second operand 3 states and 855 transitions. [2024-11-19 06:02:40,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 292 transitions, 832 flow [2024-11-19 06:02:40,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 292 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:40,984 INFO L231 Difference]: Finished difference. Result has 265 places, 274 transitions, 660 flow [2024-11-19 06:02:40,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=265, PETRI_TRANSITIONS=274} [2024-11-19 06:02:40,985 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -40 predicate places. [2024-11-19 06:02:40,985 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 274 transitions, 660 flow [2024-11-19 06:02:40,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:40,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:40,986 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] [2024-11-19 06:02:40,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 06:02:40,986 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:40,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash 313854607, now seen corresponding path program 1 times [2024-11-19 06:02:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:40,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630344572] [2024-11-19 06:02:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:40,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:41,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:41,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630344572] [2024-11-19 06:02:41,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630344572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:41,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:41,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:02:41,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161881350] [2024-11-19 06:02:41,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:41,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:02:41,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:02:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:41,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 323 [2024-11-19 06:02:41,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 274 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:41,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:41,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 323 [2024-11-19 06:02:41,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:52,959 INFO L124 PetriNetUnfolderBase]: 19159/63586 cut-off events. [2024-11-19 06:02:52,960 INFO L125 PetriNetUnfolderBase]: For 9276/9276 co-relation queries the response was YES. [2024-11-19 06:02:53,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100914 conditions, 63586 events. 19159/63586 cut-off events. For 9276/9276 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 733863 event pairs, 801 based on Foata normal form. 0/60077 useless extension candidates. Maximal degree in co-relation 49119. Up to 29355 conditions per place.