./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9f2c63b5b236ffd2c3c18bb3989267f7d1d50794d9317a52e37b9cf94f3ba35 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:18:49,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:18:49,414 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:18:49,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:18:49,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:18:49,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:18:49,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:18:49,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:18:49,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:18:49,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:18:49,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:18:49,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:18:49,448 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:18:49,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:18:49,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:18:49,450 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:18:49,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:18:49,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:18:49,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:18:49,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:18:49,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:18:49,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:18:49,454 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:18:49,454 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:18:49,454 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:18:49,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:18:49,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:18:49,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:18:49,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:18:49,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:18:49,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:18:49,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:18:49,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:18:49,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:18:49,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:18:49,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:18:49,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:18:49,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:18:49,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:18:49,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:18:49,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:18:49,457 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f2c63b5b236ffd2c3c18bb3989267f7d1d50794d9317a52e37b9cf94f3ba35 [2024-10-11 17:18:49,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:18:49,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:18:49,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:18:49,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:18:49,717 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:18:49,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i [2024-10-11 17:18:50,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:18:51,128 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:18:51,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i [2024-10-11 17:18:51,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/df05ebbe5/3f0c405e0e3b4970ab891fc73b308756/FLAGca9221124 [2024-10-11 17:18:51,153 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/df05ebbe5/3f0c405e0e3b4970ab891fc73b308756 [2024-10-11 17:18:51,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:18:51,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:18:51,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:18:51,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:18:51,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:18:51,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eac149f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51, skipping insertion in model container [2024-10-11 17:18:51,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:18:51,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:18:51,537 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:18:51,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:18:51,610 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:18:51,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51 WrapperNode [2024-10-11 17:18:51,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:18:51,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:18:51,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:18:51,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:18:51,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,664 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 173 [2024-10-11 17:18:51,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:18:51,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:18:51,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:18:51,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:18:51,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:18:51,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:18:51,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:18:51,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:18:51,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (1/1) ... [2024-10-11 17:18:51,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:18:51,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:51,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:18:51,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:18:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:18:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-11 17:18:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-11 17:18:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:18:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-11 17:18:51,797 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 17:18:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:18:51,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:18:51,799 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:18:51,900 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:18:51,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:18:52,158 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:18:52,158 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:18:52,207 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:18:52,208 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-11 17:18:52,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:52 BoogieIcfgContainer [2024-10-11 17:18:52,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:18:52,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:18:52,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:18:52,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:18:52,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:18:51" (1/3) ... [2024-10-11 17:18:52,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35478e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:18:52, skipping insertion in model container [2024-10-11 17:18:52,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:51" (2/3) ... [2024-10-11 17:18:52,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35478e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:18:52, skipping insertion in model container [2024-10-11 17:18:52,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:52" (3/3) ... [2024-10-11 17:18:52,217 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-30.i [2024-10-11 17:18:52,231 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:18:52,231 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-11 17:18:52,232 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:18:52,301 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 17:18:52,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 217 transitions, 454 flow [2024-10-11 17:18:52,501 INFO L124 PetriNetUnfolderBase]: 32/556 cut-off events. [2024-10-11 17:18:52,501 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 17:18:52,511 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. [2024-10-11 17:18:52,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 217 transitions, 454 flow [2024-10-11 17:18:52,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 217 transitions, 454 flow [2024-10-11 17:18:52,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:52,539 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;@62e57981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:52,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-11 17:18:52,562 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:52,564 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-11 17:18:52,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:52,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:52,565 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] [2024-10-11 17:18:52,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:52,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash -388360822, now seen corresponding path program 1 times [2024-10-11 17:18:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:52,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051827190] [2024-10-11 17:18:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:52,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:52,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:52,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051827190] [2024-10-11 17:18:52,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051827190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:52,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:52,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:52,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483736691] [2024-10-11 17:18:52,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:52,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:52,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:52,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:52,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:52,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-10-11 17:18:52,954 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) [2024-10-11 17:18:52,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:52,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-10-11 17:18:52,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:53,098 INFO L124 PetriNetUnfolderBase]: 85/973 cut-off events. [2024-10-11 17:18:53,099 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2024-10-11 17:18:53,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 973 events. 85/973 cut-off events. For 43/45 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. [2024-10-11 17:18:53,109 INFO L140 encePairwiseOnDemand]: 207/217 looper letters, 31 selfloop transitions, 2 changer transitions 0/200 dead transitions. [2024-10-11 17:18:53,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 200 transitions, 486 flow [2024-10-11 17:18:53,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-10-11 17:18:53,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602150537634409 [2024-10-11 17:18:53,126 INFO L175 Difference]: Start difference. First operand has 209 places, 217 transitions, 454 flow. Second operand 3 states and 560 transitions. [2024-10-11 17:18:53,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 200 transitions, 486 flow [2024-10-11 17:18:53,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 200 transitions, 486 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:53,135 INFO L231 Difference]: Finished difference. Result has 200 places, 200 transitions, 424 flow [2024-10-11 17:18:53,137 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} [2024-10-11 17:18:53,140 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2024-10-11 17:18:53,141 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 200 transitions, 424 flow [2024-10-11 17:18:53,142 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) [2024-10-11 17:18:53,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:53,142 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] [2024-10-11 17:18:53,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:18:53,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:53,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:53,144 INFO L85 PathProgramCache]: Analyzing trace with hash 985080266, now seen corresponding path program 1 times [2024-10-11 17:18:53,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:53,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130712980] [2024-10-11 17:18:53,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:53,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:53,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:53,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130712980] [2024-10-11 17:18:53,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130712980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:53,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:53,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:53,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12171693] [2024-10-11 17:18:53,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:53,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:53,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:53,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:53,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:53,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 217 [2024-10-11 17:18:53,332 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) [2024-10-11 17:18:53,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:53,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 217 [2024-10-11 17:18:53,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:53,450 INFO L124 PetriNetUnfolderBase]: 117/984 cut-off events. [2024-10-11 17:18:53,450 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-10-11 17:18:53,454 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. [2024-10-11 17:18:53,458 INFO L140 encePairwiseOnDemand]: 194/217 looper letters, 31 selfloop transitions, 11 changer transitions 0/190 dead transitions. [2024-10-11 17:18:53,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 190 transitions, 488 flow [2024-10-11 17:18:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:53,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2024-10-11 17:18:53,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7972350230414746 [2024-10-11 17:18:53,462 INFO L175 Difference]: Start difference. First operand has 200 places, 200 transitions, 424 flow. Second operand 3 states and 519 transitions. [2024-10-11 17:18:53,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 190 transitions, 488 flow [2024-10-11 17:18:53,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 190 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:53,466 INFO L231 Difference]: Finished difference. Result has 188 places, 188 transitions, 418 flow [2024-10-11 17:18:53,467 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} [2024-10-11 17:18:53,467 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -21 predicate places. [2024-10-11 17:18:53,467 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 188 transitions, 418 flow [2024-10-11 17:18:53,468 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) [2024-10-11 17:18:53,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:53,468 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] [2024-10-11 17:18:53,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:18:53,468 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:53,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1613330187, now seen corresponding path program 1 times [2024-10-11 17:18:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:53,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083695523] [2024-10-11 17:18:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:53,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:53,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083695523] [2024-10-11 17:18:53,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083695523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:53,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:53,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:53,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014227547] [2024-10-11 17:18:53,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:53,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:53,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:53,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:53,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:53,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 217 [2024-10-11 17:18:53,655 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) [2024-10-11 17:18:53,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:53,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 217 [2024-10-11 17:18:53,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:53,728 INFO L124 PetriNetUnfolderBase]: 27/504 cut-off events. [2024-10-11 17:18:53,728 INFO L125 PetriNetUnfolderBase]: For 32/36 co-relation queries the response was YES. [2024-10-11 17:18:53,729 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. [2024-10-11 17:18:53,731 INFO L140 encePairwiseOnDemand]: 205/217 looper letters, 17 selfloop transitions, 8 changer transitions 9/193 dead transitions. [2024-10-11 17:18:53,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 193 transitions, 486 flow [2024-10-11 17:18:53,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:53,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-10-11 17:18:53,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9032258064516129 [2024-10-11 17:18:53,733 INFO L175 Difference]: Start difference. First operand has 188 places, 188 transitions, 418 flow. Second operand 3 states and 588 transitions. [2024-10-11 17:18:53,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 193 transitions, 486 flow [2024-10-11 17:18:53,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:53,737 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 412 flow [2024-10-11 17:18:53,738 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} [2024-10-11 17:18:53,738 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -20 predicate places. [2024-10-11 17:18:53,738 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 412 flow [2024-10-11 17:18:53,739 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) [2024-10-11 17:18:53,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:53,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:53,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:18:53,739 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2042480670, now seen corresponding path program 1 times [2024-10-11 17:18:53,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:53,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981165709] [2024-10-11 17:18:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:53,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:54,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981165709] [2024-10-11 17:18:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981165709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785330036] [2024-10-11 17:18:54,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:54,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:54,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:54,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:54,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:54,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 217 [2024-10-11 17:18:54,236 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) [2024-10-11 17:18:54,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:54,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 217 [2024-10-11 17:18:54,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:54,360 INFO L124 PetriNetUnfolderBase]: 83/713 cut-off events. [2024-10-11 17:18:54,360 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-11 17:18:54,362 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. [2024-10-11 17:18:54,365 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 42 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-10-11 17:18:54,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 187 transitions, 520 flow [2024-10-11 17:18:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:54,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1043 transitions. [2024-10-11 17:18:54,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8010752688172043 [2024-10-11 17:18:54,367 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 412 flow. Second operand 6 states and 1043 transitions. [2024-10-11 17:18:54,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 187 transitions, 520 flow [2024-10-11 17:18:54,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 187 transitions, 512 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:54,373 INFO L231 Difference]: Finished difference. Result has 183 places, 179 transitions, 412 flow [2024-10-11 17:18:54,373 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} [2024-10-11 17:18:54,374 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -26 predicate places. [2024-10-11 17:18:54,374 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 179 transitions, 412 flow [2024-10-11 17:18:54,375 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) [2024-10-11 17:18:54,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:54,375 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] [2024-10-11 17:18:54,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:18:54,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:54,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 192606770, now seen corresponding path program 1 times [2024-10-11 17:18:54,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851588441] [2024-10-11 17:18:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:54,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851588441] [2024-10-11 17:18:54,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851588441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:54,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:54,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707078438] [2024-10-11 17:18:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:54,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:54,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:54,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:54,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:54,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-10-11 17:18:54,489 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) [2024-10-11 17:18:54,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:54,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-10-11 17:18:54,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:54,566 INFO L124 PetriNetUnfolderBase]: 63/695 cut-off events. [2024-10-11 17:18:54,567 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-11 17:18:54,569 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. [2024-10-11 17:18:54,572 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 32 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2024-10-11 17:18:54,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 180 transitions, 482 flow [2024-10-11 17:18:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:54,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-10-11 17:18:54,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8509984639016898 [2024-10-11 17:18:54,574 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 412 flow. Second operand 3 states and 554 transitions. [2024-10-11 17:18:54,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 180 transitions, 482 flow [2024-10-11 17:18:54,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 180 transitions, 472 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:18:54,578 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 404 flow [2024-10-11 17:18:54,578 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} [2024-10-11 17:18:54,580 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -30 predicate places. [2024-10-11 17:18:54,581 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 404 flow [2024-10-11 17:18:54,581 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) [2024-10-11 17:18:54,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:54,582 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] [2024-10-11 17:18:54,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:18:54,582 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:54,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:54,583 INFO L85 PathProgramCache]: Analyzing trace with hash -480403281, now seen corresponding path program 1 times [2024-10-11 17:18:54,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:54,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661221624] [2024-10-11 17:18:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:54,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:54,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:54,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661221624] [2024-10-11 17:18:54,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661221624] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126631575] [2024-10-11 17:18:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:54,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:54,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:54,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:18:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:54,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:54,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 17:18:54,767 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:54,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126631575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:54,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:54,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066977289] [2024-10-11 17:18:54,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:54,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:54,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:54,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-10-11 17:18:54,841 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) [2024-10-11 17:18:54,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:54,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-10-11 17:18:54,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:54,923 INFO L124 PetriNetUnfolderBase]: 63/679 cut-off events. [2024-10-11 17:18:54,923 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-11 17:18:54,924 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. [2024-10-11 17:18:54,926 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 32 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-10-11 17:18:54,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 179 transitions, 474 flow [2024-10-11 17:18:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-10-11 17:18:54,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8509984639016898 [2024-10-11 17:18:54,928 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 404 flow. Second operand 3 states and 554 transitions. [2024-10-11 17:18:54,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 179 transitions, 474 flow [2024-10-11 17:18:54,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 179 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:54,933 INFO L231 Difference]: Finished difference. Result has 178 places, 177 transitions, 402 flow [2024-10-11 17:18:54,933 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} [2024-10-11 17:18:54,934 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -31 predicate places. [2024-10-11 17:18:54,935 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 177 transitions, 402 flow [2024-10-11 17:18:54,935 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) [2024-10-11 17:18:54,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:54,935 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] [2024-10-11 17:18:54,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:18:55,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:55,137 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 17:18:55,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:55,138 INFO L85 PathProgramCache]: Analyzing trace with hash -297958305, now seen corresponding path program 1 times [2024-10-11 17:18:55,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:55,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050093280] [2024-10-11 17:18:55,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:55,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:55,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:18:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:55,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:18:55,182 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:18:55,183 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-10-11 17:18:55,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-10-11 17:18:55,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-10-11 17:18:55,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-10-11 17:18:55,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-10-11 17:18:55,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-10-11 17:18:55,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-10-11 17:18:55,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-10-11 17:18:55,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-10-11 17:18:55,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-10-11 17:18:55,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-10-11 17:18:55,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-10-11 17:18:55,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-10-11 17:18:55,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-10-11 17:18:55,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-10-11 17:18:55,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-10-11 17:18:55,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-10-11 17:18:55,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-10-11 17:18:55,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-10-11 17:18:55,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-10-11 17:18:55,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-10-11 17:18:55,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-10-11 17:18:55,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-10-11 17:18:55,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-10-11 17:18:55,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-10-11 17:18:55,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-10-11 17:18:55,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-10-11 17:18:55,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-10-11 17:18:55,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-10-11 17:18:55,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-10-11 17:18:55,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-10-11 17:18:55,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-10-11 17:18:55,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-10-11 17:18:55,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-10-11 17:18:55,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-10-11 17:18:55,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-10-11 17:18:55,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-10-11 17:18:55,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-10-11 17:18:55,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:18:55,196 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:55,198 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:18:55,199 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 17:18:55,245 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-11 17:18:55,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 270 transitions, 584 flow [2024-10-11 17:18:55,435 INFO L124 PetriNetUnfolderBase]: 131/1806 cut-off events. [2024-10-11 17:18:55,435 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-11 17:18:55,442 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. [2024-10-11 17:18:55,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 270 transitions, 584 flow [2024-10-11 17:18:55,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 270 transitions, 584 flow [2024-10-11 17:18:55,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:55,457 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;@62e57981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:55,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-10-11 17:18:55,458 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:55,460 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-11 17:18:55,460 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:55,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:55,461 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] [2024-10-11 17:18:55,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:18:55,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 640713866, now seen corresponding path program 1 times [2024-10-11 17:18:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:55,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108715372] [2024-10-11 17:18:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:55,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:55,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:55,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:55,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108715372] [2024-10-11 17:18:55,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108715372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:55,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:55,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:55,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463486236] [2024-10-11 17:18:55,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:55,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:55,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:55,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:55,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:55,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-10-11 17:18:55,566 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) [2024-10-11 17:18:55,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:55,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-10-11 17:18:55,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:56,452 INFO L124 PetriNetUnfolderBase]: 1200/6906 cut-off events. [2024-10-11 17:18:56,453 INFO L125 PetriNetUnfolderBase]: For 652/686 co-relation queries the response was YES. [2024-10-11 17:18:56,479 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. [2024-10-11 17:18:56,518 INFO L140 encePairwiseOnDemand]: 257/270 looper letters, 39 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2024-10-11 17:18:56,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 241 transitions, 608 flow [2024-10-11 17:18:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-10-11 17:18:56,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2024-10-11 17:18:56,521 INFO L175 Difference]: Start difference. First operand has 257 places, 270 transitions, 584 flow. Second operand 3 states and 688 transitions. [2024-10-11 17:18:56,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 241 transitions, 608 flow [2024-10-11 17:18:56,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 241 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:56,525 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 530 flow [2024-10-11 17:18:56,525 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} [2024-10-11 17:18:56,526 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -19 predicate places. [2024-10-11 17:18:56,527 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 530 flow [2024-10-11 17:18:56,527 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) [2024-10-11 17:18:56,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:56,527 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] [2024-10-11 17:18:56,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:18:56,528 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:18:56,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:56,528 INFO L85 PathProgramCache]: Analyzing trace with hash 672817750, now seen corresponding path program 1 times [2024-10-11 17:18:56,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:56,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608179041] [2024-10-11 17:18:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:56,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:56,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:56,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608179041] [2024-10-11 17:18:56,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608179041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:56,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:56,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:56,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534654619] [2024-10-11 17:18:56,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:56,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:56,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:56,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:56,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:56,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 270 [2024-10-11 17:18:56,605 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) [2024-10-11 17:18:56,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:56,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 270 [2024-10-11 17:18:56,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:57,564 INFO L124 PetriNetUnfolderBase]: 1650/7274 cut-off events. [2024-10-11 17:18:57,564 INFO L125 PetriNetUnfolderBase]: For 671/689 co-relation queries the response was YES. [2024-10-11 17:18:57,595 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. [2024-10-11 17:18:57,627 INFO L140 encePairwiseOnDemand]: 247/270 looper letters, 41 selfloop transitions, 11 changer transitions 0/233 dead transitions. [2024-10-11 17:18:57,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 233 transitions, 618 flow [2024-10-11 17:18:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2024-10-11 17:18:57,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7975308641975308 [2024-10-11 17:18:57,629 INFO L175 Difference]: Start difference. First operand has 238 places, 241 transitions, 530 flow. Second operand 3 states and 646 transitions. [2024-10-11 17:18:57,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 233 transitions, 618 flow [2024-10-11 17:18:57,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 233 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:57,633 INFO L231 Difference]: Finished difference. Result has 226 places, 229 transitions, 524 flow [2024-10-11 17:18:57,633 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} [2024-10-11 17:18:57,634 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -31 predicate places. [2024-10-11 17:18:57,634 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 229 transitions, 524 flow [2024-10-11 17:18:57,634 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) [2024-10-11 17:18:57,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:57,634 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] [2024-10-11 17:18:57,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:18:57,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:18:57,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash -861913611, now seen corresponding path program 1 times [2024-10-11 17:18:57,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:57,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285932799] [2024-10-11 17:18:57,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:57,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:57,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:57,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285932799] [2024-10-11 17:18:57,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285932799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:57,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:57,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:57,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946966920] [2024-10-11 17:18:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:57,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:57,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:57,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 270 [2024-10-11 17:18:57,718 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) [2024-10-11 17:18:57,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:57,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 270 [2024-10-11 17:18:57,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:58,305 INFO L124 PetriNetUnfolderBase]: 630/4749 cut-off events. [2024-10-11 17:18:58,305 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-10-11 17:18:58,319 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. [2024-10-11 17:18:58,331 INFO L140 encePairwiseOnDemand]: 258/270 looper letters, 37 selfloop transitions, 8 changer transitions 0/245 dead transitions. [2024-10-11 17:18:58,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 245 transitions, 670 flow [2024-10-11 17:18:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2024-10-11 17:18:58,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938271604938272 [2024-10-11 17:18:58,333 INFO L175 Difference]: Start difference. First operand has 226 places, 229 transitions, 524 flow. Second operand 3 states and 724 transitions. [2024-10-11 17:18:58,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 245 transitions, 670 flow [2024-10-11 17:18:58,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 245 transitions, 648 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:58,337 INFO L231 Difference]: Finished difference. Result has 227 places, 233 transitions, 550 flow [2024-10-11 17:18:58,338 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} [2024-10-11 17:18:58,338 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -30 predicate places. [2024-10-11 17:18:58,338 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 233 transitions, 550 flow [2024-10-11 17:18:58,339 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) [2024-10-11 17:18:58,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:58,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:58,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:18:58,339 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:18:58,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:58,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2085998738, now seen corresponding path program 1 times [2024-10-11 17:18:58,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:58,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807003768] [2024-10-11 17:18:58,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:58,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807003768] [2024-10-11 17:18:58,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807003768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:58,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:58,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312699472] [2024-10-11 17:18:58,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:58,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:58,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:58,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:58,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 270 [2024-10-11 17:18:58,717 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) [2024-10-11 17:18:58,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:58,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 270 [2024-10-11 17:18:58,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:59,828 INFO L124 PetriNetUnfolderBase]: 1558/7334 cut-off events. [2024-10-11 17:18:59,829 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-10-11 17:18:59,850 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. [2024-10-11 17:18:59,871 INFO L140 encePairwiseOnDemand]: 264/270 looper letters, 62 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2024-10-11 17:18:59,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 248 transitions, 716 flow [2024-10-11 17:18:59,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2024-10-11 17:18:59,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7993827160493827 [2024-10-11 17:18:59,874 INFO L175 Difference]: Start difference. First operand has 227 places, 233 transitions, 550 flow. Second operand 6 states and 1295 transitions. [2024-10-11 17:18:59,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 248 transitions, 716 flow [2024-10-11 17:18:59,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 248 transitions, 708 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:59,878 INFO L231 Difference]: Finished difference. Result has 230 places, 232 transitions, 552 flow [2024-10-11 17:18:59,878 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} [2024-10-11 17:18:59,879 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -27 predicate places. [2024-10-11 17:18:59,879 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 232 transitions, 552 flow [2024-10-11 17:18:59,880 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) [2024-10-11 17:18:59,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:59,880 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] [2024-10-11 17:18:59,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:18:59,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:18:59,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:59,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1106464142, now seen corresponding path program 1 times [2024-10-11 17:18:59,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:59,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479879315] [2024-10-11 17:18:59,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:59,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:59,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:59,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479879315] [2024-10-11 17:18:59,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479879315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:59,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:59,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:59,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901728564] [2024-10-11 17:18:59,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:59,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:59,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:59,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:59,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:59,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-10-11 17:18:59,972 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) [2024-10-11 17:18:59,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:59,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-10-11 17:18:59,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:00,794 INFO L124 PetriNetUnfolderBase]: 1177/6824 cut-off events. [2024-10-11 17:19:00,794 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-10-11 17:19:00,817 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. [2024-10-11 17:19:00,836 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 43 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-10-11 17:19:00,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 235 transitions, 648 flow [2024-10-11 17:19:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:19:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:19:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-10-11 17:19:00,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419753086419753 [2024-10-11 17:19:00,839 INFO L175 Difference]: Start difference. First operand has 230 places, 232 transitions, 552 flow. Second operand 3 states and 682 transitions. [2024-10-11 17:19:00,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 235 transitions, 648 flow [2024-10-11 17:19:00,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 235 transitions, 636 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:19:00,842 INFO L231 Difference]: Finished difference. Result has 226 places, 231 transitions, 542 flow [2024-10-11 17:19:00,843 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} [2024-10-11 17:19:00,843 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -31 predicate places. [2024-10-11 17:19:00,843 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 231 transitions, 542 flow [2024-10-11 17:19:00,844 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) [2024-10-11 17:19:00,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:00,844 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] [2024-10-11 17:19:00,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:19:00,844 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:19:00,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1971927073, now seen corresponding path program 1 times [2024-10-11 17:19:00,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:00,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487460070] [2024-10-11 17:19:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:00,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:00,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:00,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487460070] [2024-10-11 17:19:00,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487460070] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:19:00,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385200389] [2024-10-11 17:19:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:00,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:19:00,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:19:00,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:19:00,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:19:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:00,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:19:00,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:19:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 17:19:01,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:19:01,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385200389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:19:01,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:19:01,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:19:01,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459679876] [2024-10-11 17:19:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:19:01,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:19:01,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:01,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:19:01,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:19:01,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-10-11 17:19:01,071 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) [2024-10-11 17:19:01,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:01,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-10-11 17:19:01,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:01,823 INFO L124 PetriNetUnfolderBase]: 1177/6779 cut-off events. [2024-10-11 17:19:01,823 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-10-11 17:19:01,845 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. [2024-10-11 17:19:01,862 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 43 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-10-11 17:19:01,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 234 transitions, 638 flow [2024-10-11 17:19:01,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:19:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:19:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-10-11 17:19:01,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419753086419753 [2024-10-11 17:19:01,864 INFO L175 Difference]: Start difference. First operand has 226 places, 231 transitions, 542 flow. Second operand 3 states and 682 transitions. [2024-10-11 17:19:01,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 234 transitions, 638 flow [2024-10-11 17:19:01,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 234 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:19:01,867 INFO L231 Difference]: Finished difference. Result has 225 places, 230 transitions, 540 flow [2024-10-11 17:19:01,868 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} [2024-10-11 17:19:01,868 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -32 predicate places. [2024-10-11 17:19:01,868 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 230 transitions, 540 flow [2024-10-11 17:19:01,869 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) [2024-10-11 17:19:01,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:01,869 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] [2024-10-11 17:19:01,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:19:02,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:19:02,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:19:02,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:02,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1588522226, now seen corresponding path program 1 times [2024-10-11 17:19:02,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:02,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223033695] [2024-10-11 17:19:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:02,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:02,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223033695] [2024-10-11 17:19:02,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223033695] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:19:02,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168871830] [2024-10-11 17:19:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:02,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:19:02,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:19:02,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:19:02,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:19:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:02,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:19:02,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:19:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:02,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:19:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:02,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168871830] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:19:02,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:19:02,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:19:02,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610470119] [2024-10-11 17:19:02,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:19:02,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:19:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:19:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:19:02,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 270 [2024-10-11 17:19:02,633 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) [2024-10-11 17:19:02,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:02,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 270 [2024-10-11 17:19:02,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:02,706 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-10-11 17:19:02,706 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-11 17:19:02,706 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. [2024-10-11 17:19:02,707 INFO L140 encePairwiseOnDemand]: 265/270 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-10-11 17:19:02,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-10-11 17:19:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:19:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:19:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1991 transitions. [2024-10-11 17:19:02,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8193415637860082 [2024-10-11 17:19:02,712 INFO L175 Difference]: Start difference. First operand has 225 places, 230 transitions, 540 flow. Second operand 9 states and 1991 transitions. [2024-10-11 17:19:02,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-10-11 17:19:02,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:19:02,714 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-10-11 17:19:02,714 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} [2024-10-11 17:19:02,715 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -182 predicate places. [2024-10-11 17:19:02,716 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-10-11 17:19:02,717 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) [2024-10-11 17:19:02,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:02,718 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] [2024-10-11 17:19:02,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:19:02,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:19:02,919 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-11 17:19:02,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2076479318, now seen corresponding path program 1 times [2024-10-11 17:19:02,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:02,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121992672] [2024-10-11 17:19:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:02,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:19:02,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:19:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:19:02,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:19:02,972 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:19:02,972 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-10-11 17:19:02,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-10-11 17:19:02,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-10-11 17:19:02,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-10-11 17:19:02,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-10-11 17:19:02,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-10-11 17:19:02,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-10-11 17:19:02,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-10-11 17:19:02,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-10-11 17:19:02,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-10-11 17:19:02,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-10-11 17:19:02,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-10-11 17:19:02,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-10-11 17:19:02,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-10-11 17:19:02,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:19:02,977 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:19:02,978 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:19:02,979 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 17:19:03,028 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-10-11 17:19:03,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 323 transitions, 718 flow [2024-10-11 17:19:03,863 INFO L124 PetriNetUnfolderBase]: 544/5922 cut-off events. [2024-10-11 17:19:03,863 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-10-11 17:19:03,909 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. [2024-10-11 17:19:03,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 323 transitions, 718 flow [2024-10-11 17:19:03,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 323 transitions, 718 flow [2024-10-11 17:19:03,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:19:03,950 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;@62e57981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:19:03,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-11 17:19:03,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:19:03,952 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-11 17:19:03,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:19:03,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:03,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:19:03,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-11 17:19:03,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:03,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1184181706, now seen corresponding path program 1 times [2024-10-11 17:19:03,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:03,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58591441] [2024-10-11 17:19:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:03,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:03,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58591441] [2024-10-11 17:19:03,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58591441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:19:03,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:19:03,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:19:03,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677305089] [2024-10-11 17:19:03,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:19:03,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:19:03,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:03,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:19:03,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:19:04,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 323 [2024-10-11 17:19:04,044 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) [2024-10-11 17:19:04,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:04,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 323 [2024-10-11 17:19:04,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:12,808 INFO L124 PetriNetUnfolderBase]: 12815/48824 cut-off events. [2024-10-11 17:19:12,808 INFO L125 PetriNetUnfolderBase]: For 7818/8364 co-relation queries the response was YES. [2024-10-11 17:19:13,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70847 conditions, 48824 events. 12815/48824 cut-off events. For 7818/8364 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. [2024-10-11 17:19:13,566 INFO L140 encePairwiseOnDemand]: 307/323 looper letters, 47 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-10-11 17:19:13,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 282 transitions, 734 flow [2024-10-11 17:19:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:19:13,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:19:13,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2024-10-11 17:19:13,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2024-10-11 17:19:13,568 INFO L175 Difference]: Start difference. First operand has 305 places, 323 transitions, 718 flow. Second operand 3 states and 816 transitions. [2024-10-11 17:19:13,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 282 transitions, 734 flow [2024-10-11 17:19:13,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 282 transitions, 734 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:19:13,577 INFO L231 Difference]: Finished difference. Result has 276 places, 282 transitions, 640 flow [2024-10-11 17:19:13,578 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} [2024-10-11 17:19:13,578 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -29 predicate places. [2024-10-11 17:19:13,578 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 282 transitions, 640 flow [2024-10-11 17:19:13,578 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) [2024-10-11 17:19:13,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:13,579 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] [2024-10-11 17:19:13,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:19:13,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-11 17:19:13,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash -903147977, now seen corresponding path program 1 times [2024-10-11 17:19:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:13,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014402915] [2024-10-11 17:19:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:13,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:13,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014402915] [2024-10-11 17:19:13,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014402915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:19:13,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:19:13,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:19:13,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52009414] [2024-10-11 17:19:13,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:19:13,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:19:13,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:13,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:19:13,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:19:13,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 323 [2024-10-11 17:19:13,648 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) [2024-10-11 17:19:13,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:13,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 323 [2024-10-11 17:19:13,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:22,906 INFO L124 PetriNetUnfolderBase]: 17515/54357 cut-off events. [2024-10-11 17:19:22,907 INFO L125 PetriNetUnfolderBase]: For 7723/8171 co-relation queries the response was YES. [2024-10-11 17:19:23,374 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. [2024-10-11 17:19:23,836 INFO L140 encePairwiseOnDemand]: 300/323 looper letters, 51 selfloop transitions, 11 changer transitions 0/276 dead transitions. [2024-10-11 17:19:23,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 276 transitions, 752 flow [2024-10-11 17:19:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:19:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:19:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2024-10-11 17:19:23,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7977296181630547 [2024-10-11 17:19:23,838 INFO L175 Difference]: Start difference. First operand has 276 places, 282 transitions, 640 flow. Second operand 3 states and 773 transitions. [2024-10-11 17:19:23,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 276 transitions, 752 flow [2024-10-11 17:19:23,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 276 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:19:24,036 INFO L231 Difference]: Finished difference. Result has 264 places, 270 transitions, 634 flow [2024-10-11 17:19:24,037 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} [2024-10-11 17:19:24,037 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -41 predicate places. [2024-10-11 17:19:24,037 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 270 transitions, 634 flow [2024-10-11 17:19:24,037 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) [2024-10-11 17:19:24,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:24,038 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] [2024-10-11 17:19:24,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:19:24,038 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-11 17:19:24,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:24,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1400313781, now seen corresponding path program 1 times [2024-10-11 17:19:24,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:24,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091978513] [2024-10-11 17:19:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:24,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:24,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:24,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091978513] [2024-10-11 17:19:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091978513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:19:24,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:19:24,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:19:24,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396856583] [2024-10-11 17:19:24,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:19:24,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:19:24,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:24,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:19:24,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:19:24,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 323 [2024-10-11 17:19:24,143 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) [2024-10-11 17:19:24,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:24,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 323 [2024-10-11 17:19:24,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:29,818 INFO L124 PetriNetUnfolderBase]: 8365/37548 cut-off events. [2024-10-11 17:19:29,818 INFO L125 PetriNetUnfolderBase]: For 10106/10660 co-relation queries the response was YES. [2024-10-11 17:19:30,080 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. [2024-10-11 17:19:30,253 INFO L140 encePairwiseOnDemand]: 311/323 looper letters, 51 selfloop transitions, 8 changer transitions 0/292 dead transitions. [2024-10-11 17:19:30,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 292 transitions, 832 flow [2024-10-11 17:19:30,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:19:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:19:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 855 transitions. [2024-10-11 17:19:30,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-10-11 17:19:30,255 INFO L175 Difference]: Start difference. First operand has 264 places, 270 transitions, 634 flow. Second operand 3 states and 855 transitions. [2024-10-11 17:19:30,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 292 transitions, 832 flow [2024-10-11 17:19:30,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 292 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:19:30,271 INFO L231 Difference]: Finished difference. Result has 265 places, 274 transitions, 660 flow [2024-10-11 17:19:30,272 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} [2024-10-11 17:19:30,272 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -40 predicate places. [2024-10-11 17:19:30,272 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 274 transitions, 660 flow [2024-10-11 17:19:30,273 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) [2024-10-11 17:19:30,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:30,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:19:30,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:19:30,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-11 17:19:30,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash 313854607, now seen corresponding path program 1 times [2024-10-11 17:19:30,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:30,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874619594] [2024-10-11 17:19:30,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:30,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:30,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:30,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874619594] [2024-10-11 17:19:30,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874619594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:19:30,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:19:30,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:19:30,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823498174] [2024-10-11 17:19:30,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:19:30,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:19:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:30,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:19:30,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:19:30,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 323 [2024-10-11 17:19:30,540 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) [2024-10-11 17:19:30,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:30,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 323 [2024-10-11 17:19:30,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:19:41,313 INFO L124 PetriNetUnfolderBase]: 19159/63586 cut-off events. [2024-10-11 17:19:41,313 INFO L125 PetriNetUnfolderBase]: For 9276/9276 co-relation queries the response was YES. [2024-10-11 17:19:41,888 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. [2024-10-11 17:19:42,383 INFO L140 encePairwiseOnDemand]: 317/323 looper letters, 78 selfloop transitions, 6 changer transitions 0/297 dead transitions. [2024-10-11 17:19:42,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 297 transitions, 874 flow [2024-10-11 17:19:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:19:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:19:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1545 transitions. [2024-10-11 17:19:42,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7972136222910217 [2024-10-11 17:19:42,387 INFO L175 Difference]: Start difference. First operand has 265 places, 274 transitions, 660 flow. Second operand 6 states and 1545 transitions. [2024-10-11 17:19:42,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 297 transitions, 874 flow [2024-10-11 17:19:42,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 297 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:19:42,403 INFO L231 Difference]: Finished difference. Result has 268 places, 273 transitions, 662 flow [2024-10-11 17:19:42,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=268, PETRI_TRANSITIONS=273} [2024-10-11 17:19:42,404 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -37 predicate places. [2024-10-11 17:19:42,404 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 273 transitions, 662 flow [2024-10-11 17:19:42,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-10-11 17:19:42,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:19:42,405 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] [2024-10-11 17:19:42,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:19:42,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-11 17:19:42,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:19:42,405 INFO L85 PathProgramCache]: Analyzing trace with hash 353194495, now seen corresponding path program 1 times [2024-10-11 17:19:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:19:42,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849875797] [2024-10-11 17:19:42,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:19:42,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:19:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:19:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:19:42,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:19:42,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849875797] [2024-10-11 17:19:42,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849875797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:19:42,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:19:42,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:19:42,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673508397] [2024-10-11 17:19:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:19:42,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:19:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:19:42,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:19:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:19:42,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 323 [2024-10-11 17:19:42,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 273 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:19:42,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:19:42,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 323 [2024-10-11 17:19:42,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand