./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc410c23b8a40101ed787fe72a0515ef047b7022a45484b309d3277414201100 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:01:58,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:01:58,961 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 06:01:58,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:01:58,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:01:58,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:01:58,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:01:58,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:01:58,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:01:58,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:01:58,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:01:58,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:01:58,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:01:58,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:01:58,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 06:01:58,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:01:59,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:01:59,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:01:59,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:01:59,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 06:01:59,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:01:59,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 06:01:59,003 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 06:01:59,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:01:59,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:01:59,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:01:59,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 06:01:59,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:01:59,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:01:59,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:01:59,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:01:59,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:01:59,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:01:59,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:01:59,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 06:01:59,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:01:59,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:01:59,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:01:59,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:01:59,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:01:59,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:01:59,008 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc410c23b8a40101ed787fe72a0515ef047b7022a45484b309d3277414201100 [2024-11-19 06:01:59,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:01:59,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:01:59,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:01:59,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:01:59,269 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:01:59,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i [2024-11-19 06:02:00,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:02:00,867 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:02:00,867 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i [2024-11-19 06:02:00,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f64f127/0e76e746c9b94236968d57fa207c8fc4/FLAGda9aece5c [2024-11-19 06:02:00,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f64f127/0e76e746c9b94236968d57fa207c8fc4 [2024-11-19 06:02:00,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:02:00,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:02:00,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:02:00,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:02:00,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:02:00,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:02:00" (1/1) ... [2024-11-19 06:02:00,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747cdd9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:00, skipping insertion in model container [2024-11-19 06:02:00,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:02:00" (1/1) ... [2024-11-19 06:02:00,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:02:01,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:02:01,317 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:02:01,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:02:01,418 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:02:01,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01 WrapperNode [2024-11-19 06:02:01,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:02:01,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:02:01,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:02:01,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:02:01,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,480 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 173 [2024-11-19 06:02:01,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:02:01,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:02:01,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:02:01,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:02:01,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:02:01,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:02:01,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:02:01,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:02:01,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (1/1) ... [2024-11-19 06:02:01,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:02:01,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:01,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:02:01,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:02:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-19 06:02:01,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-19 06:02:01,594 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 06:02:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 06:02:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:02:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:02:01,596 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 06:02:01,710 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:02:01,712 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:02:02,066 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 06:02:02,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:02:02,108 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:02:02,109 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-19 06:02:02,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:02:02 BoogieIcfgContainer [2024-11-19 06:02:02,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:02:02,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:02:02,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:02:02,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:02:02,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:02:00" (1/3) ... [2024-11-19 06:02:02,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437c4eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:02:02, skipping insertion in model container [2024-11-19 06:02:02,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:02:01" (2/3) ... [2024-11-19 06:02:02,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437c4eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:02:02, skipping insertion in model container [2024-11-19 06:02:02,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:02:02" (3/3) ... [2024-11-19 06:02:02,121 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-40.i [2024-11-19 06:02:02,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:02:02,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-19 06:02:02,139 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 06:02:02,210 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 06:02:02,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 217 transitions, 454 flow [2024-11-19 06:02:02,378 INFO L124 PetriNetUnfolderBase]: 32/556 cut-off events. [2024-11-19 06:02:02,382 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 06:02:02,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 556 events. 32/556 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2222 event pairs, 0 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 266. Up to 8 conditions per place. [2024-11-19 06:02:02,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 217 transitions, 454 flow [2024-11-19 06:02:02,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 217 transitions, 454 flow [2024-11-19 06:02:02,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:02:02,440 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;@6bac6a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:02:02,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-19 06:02:02,444 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:02:02,444 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:02:02,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:02:02,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:02,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:02,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:02,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:02,452 INFO L85 PathProgramCache]: Analyzing trace with hash -388360822, now seen corresponding path program 1 times [2024-11-19 06:02:02,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:02,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126471751] [2024-11-19 06:02:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:02,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:02,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126471751] [2024-11-19 06:02:02,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126471751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:02,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:02,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:02,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804525557] [2024-11-19 06:02:02,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:02,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:02,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:02,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:02,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:02,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-19 06:02:02,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 217 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:02,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:02,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-19 06:02:02,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:03,078 INFO L124 PetriNetUnfolderBase]: 85/973 cut-off events. [2024-11-19 06:02:03,078 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2024-11-19 06:02:03,086 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. [2024-11-19 06:02:03,092 INFO L140 encePairwiseOnDemand]: 207/217 looper letters, 31 selfloop transitions, 2 changer transitions 0/200 dead transitions. [2024-11-19 06:02:03,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 200 transitions, 486 flow [2024-11-19 06:02:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:03,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-19 06:02:03,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602150537634409 [2024-11-19 06:02:03,113 INFO L175 Difference]: Start difference. First operand has 209 places, 217 transitions, 454 flow. Second operand 3 states and 560 transitions. [2024-11-19 06:02:03,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 200 transitions, 486 flow [2024-11-19 06:02:03,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 200 transitions, 486 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:03,122 INFO L231 Difference]: Finished difference. Result has 200 places, 200 transitions, 424 flow [2024-11-19 06:02:03,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=200, PETRI_TRANSITIONS=200} [2024-11-19 06:02:03,128 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2024-11-19 06:02:03,129 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 200 transitions, 424 flow [2024-11-19 06:02:03,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:03,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:03,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:03,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:02:03,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:03,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 985080266, now seen corresponding path program 1 times [2024-11-19 06:02:03,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:03,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260163791] [2024-11-19 06:02:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:03,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:03,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:03,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260163791] [2024-11-19 06:02:03,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260163791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:03,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:03,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213903054] [2024-11-19 06:02:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:03,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:03,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 217 [2024-11-19 06:02:03,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 200 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:03,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:03,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 217 [2024-11-19 06:02:03,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:03,414 INFO L124 PetriNetUnfolderBase]: 117/984 cut-off events. [2024-11-19 06:02:03,414 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-19 06:02:03,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 984 events. 117/984 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5299 event pairs, 78 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 1283. Up to 243 conditions per place. [2024-11-19 06:02:03,422 INFO L140 encePairwiseOnDemand]: 194/217 looper letters, 31 selfloop transitions, 11 changer transitions 0/190 dead transitions. [2024-11-19 06:02:03,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 190 transitions, 488 flow [2024-11-19 06:02:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2024-11-19 06:02:03,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7972350230414746 [2024-11-19 06:02:03,427 INFO L175 Difference]: Start difference. First operand has 200 places, 200 transitions, 424 flow. Second operand 3 states and 519 transitions. [2024-11-19 06:02:03,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 190 transitions, 488 flow [2024-11-19 06:02:03,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 190 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:03,433 INFO L231 Difference]: Finished difference. Result has 188 places, 188 transitions, 418 flow [2024-11-19 06:02:03,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=188, PETRI_TRANSITIONS=188} [2024-11-19 06:02:03,434 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -21 predicate places. [2024-11-19 06:02:03,435 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 188 transitions, 418 flow [2024-11-19 06:02:03,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:03,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:03,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:03,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:02:03,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:03,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:03,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1613330187, now seen corresponding path program 1 times [2024-11-19 06:02:03,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:03,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546395154] [2024-11-19 06:02:03,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:03,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:03,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:03,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546395154] [2024-11-19 06:02:03,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546395154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:03,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:03,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:02:03,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028607028] [2024-11-19 06:02:03,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:03,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:03,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:03,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:03,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:03,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 217 [2024-11-19 06:02:03,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 188 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:03,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:03,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 217 [2024-11-19 06:02:03,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:03,739 INFO L124 PetriNetUnfolderBase]: 27/504 cut-off events. [2024-11-19 06:02:03,740 INFO L125 PetriNetUnfolderBase]: For 32/36 co-relation queries the response was YES. [2024-11-19 06:02:03,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 504 events. 27/504 cut-off events. For 32/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1534 event pairs, 10 based on Foata normal form. 6/459 useless extension candidates. Maximal degree in co-relation 436. Up to 39 conditions per place. [2024-11-19 06:02:03,745 INFO L140 encePairwiseOnDemand]: 205/217 looper letters, 17 selfloop transitions, 8 changer transitions 9/193 dead transitions. [2024-11-19 06:02:03,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 193 transitions, 486 flow [2024-11-19 06:02:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:03,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-11-19 06:02:03,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9032258064516129 [2024-11-19 06:02:03,747 INFO L175 Difference]: Start difference. First operand has 188 places, 188 transitions, 418 flow. Second operand 3 states and 588 transitions. [2024-11-19 06:02:03,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 193 transitions, 486 flow [2024-11-19 06:02:03,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:03,754 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 412 flow [2024-11-19 06:02:03,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=189, PETRI_TRANSITIONS=180} [2024-11-19 06:02:03,755 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -20 predicate places. [2024-11-19 06:02:03,755 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 412 flow [2024-11-19 06:02:03,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:03,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:03,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:03,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:02:03,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:03,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2042480670, now seen corresponding path program 1 times [2024-11-19 06:02:03,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:03,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515853592] [2024-11-19 06:02:03,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:03,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:04,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:04,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515853592] [2024-11-19 06:02:04,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515853592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:04,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:02:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318017991] [2024-11-19 06:02:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:04,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:02:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:04,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:02:04,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:04,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 217 [2024-11-19 06:02:04,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 180 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:04,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 217 [2024-11-19 06:02:04,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:04,459 INFO L124 PetriNetUnfolderBase]: 83/713 cut-off events. [2024-11-19 06:02:04,459 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-19 06:02:04,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 713 events. 83/713 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2700 event pairs, 5 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 794. Up to 193 conditions per place. [2024-11-19 06:02:04,464 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 42 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-11-19 06:02:04,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 187 transitions, 520 flow [2024-11-19 06:02:04,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:02:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:02:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1043 transitions. [2024-11-19 06:02:04,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8010752688172043 [2024-11-19 06:02:04,468 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 412 flow. Second operand 6 states and 1043 transitions. [2024-11-19 06:02:04,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 187 transitions, 520 flow [2024-11-19 06:02:04,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 187 transitions, 512 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:02:04,472 INFO L231 Difference]: Finished difference. Result has 183 places, 179 transitions, 412 flow [2024-11-19 06:02:04,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=412, PETRI_PLACES=183, PETRI_TRANSITIONS=179} [2024-11-19 06:02:04,473 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -26 predicate places. [2024-11-19 06:02:04,473 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 179 transitions, 412 flow [2024-11-19 06:02:04,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:04,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:04,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:02:04,474 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:04,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:04,475 INFO L85 PathProgramCache]: Analyzing trace with hash 192606770, now seen corresponding path program 1 times [2024-11-19 06:02:04,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:04,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977406059] [2024-11-19 06:02:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:04,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:04,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977406059] [2024-11-19 06:02:04,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977406059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:04,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:04,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:04,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014310152] [2024-11-19 06:02:04,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:04,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:04,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:04,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-19 06:02:04,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 179 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:04,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-19 06:02:04,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:04,656 INFO L124 PetriNetUnfolderBase]: 63/695 cut-off events. [2024-11-19 06:02:04,656 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-19 06:02:04,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 695 events. 63/695 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2655 event pairs, 49 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 728. Up to 151 conditions per place. [2024-11-19 06:02:04,661 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 32 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2024-11-19 06:02:04,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 180 transitions, 482 flow [2024-11-19 06:02:04,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-11-19 06:02:04,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8509984639016898 [2024-11-19 06:02:04,663 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 412 flow. Second operand 3 states and 554 transitions. [2024-11-19 06:02:04,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 180 transitions, 482 flow [2024-11-19 06:02:04,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 180 transitions, 472 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:02:04,667 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 404 flow [2024-11-19 06:02:04,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2024-11-19 06:02:04,669 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -30 predicate places. [2024-11-19 06:02:04,669 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 404 flow [2024-11-19 06:02:04,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:04,671 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:04,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:02:04,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:04,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:04,672 INFO L85 PathProgramCache]: Analyzing trace with hash -480403281, now seen corresponding path program 1 times [2024-11-19 06:02:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:04,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435194678] [2024-11-19 06:02:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:04,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:04,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:04,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:04,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435194678] [2024-11-19 06:02:04,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435194678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:02:04,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410731793] [2024-11-19 06:02:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:04,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:04,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:04,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:02:04,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:02:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:04,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 06:02:04,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:02:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 06:02:04,860 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:02:04,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410731793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:04,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:02:04,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 06:02:04,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935055956] [2024-11-19 06:02:04,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:04,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:04,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:04,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:04,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 217 [2024-11-19 06:02:04,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:04,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:04,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 217 [2024-11-19 06:02:04,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:05,015 INFO L124 PetriNetUnfolderBase]: 63/679 cut-off events. [2024-11-19 06:02:05,016 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 06:02:05,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 679 events. 63/679 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2557 event pairs, 49 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 702. Up to 151 conditions per place. [2024-11-19 06:02:05,021 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 32 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-11-19 06:02:05,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 179 transitions, 474 flow [2024-11-19 06:02:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2024-11-19 06:02:05,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8509984639016898 [2024-11-19 06:02:05,024 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 404 flow. Second operand 3 states and 554 transitions. [2024-11-19 06:02:05,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 179 transitions, 474 flow [2024-11-19 06:02:05,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 179 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:05,028 INFO L231 Difference]: Finished difference. Result has 178 places, 177 transitions, 402 flow [2024-11-19 06:02:05,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=178, PETRI_TRANSITIONS=177} [2024-11-19 06:02:05,030 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -31 predicate places. [2024-11-19 06:02:05,031 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 177 transitions, 402 flow [2024-11-19 06:02:05,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:05,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:05,032 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:05,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:02:05,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 06:02:05,237 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:02:05,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:05,237 INFO L85 PathProgramCache]: Analyzing trace with hash -297958305, now seen corresponding path program 1 times [2024-11-19 06:02:05,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:05,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542031948] [2024-11-19 06:02:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:05,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:05,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:02:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:05,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:02:05,308 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:02:05,309 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-19 06:02:05,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-19 06:02:05,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-19 06:02:05,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-19 06:02:05,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-19 06:02:05,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-19 06:02:05,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-19 06:02:05,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-19 06:02:05,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-19 06:02:05,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-19 06:02:05,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-19 06:02:05,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-19 06:02:05,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-19 06:02:05,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-19 06:02:05,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-19 06:02:05,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-19 06:02:05,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-19 06:02:05,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-19 06:02:05,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-19 06:02:05,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-11-19 06:02:05,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-19 06:02:05,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-19 06:02:05,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-19 06:02:05,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-19 06:02:05,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-19 06:02:05,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-19 06:02:05,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:02:05,322 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:05,325 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:02:05,325 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 06:02:05,354 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-19 06:02:05,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 270 transitions, 584 flow [2024-11-19 06:02:05,562 INFO L124 PetriNetUnfolderBase]: 131/1806 cut-off events. [2024-11-19 06:02:05,562 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-19 06:02:05,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1806 events. 131/1806 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10386 event pairs, 2 based on Foata normal form. 0/1423 useless extension candidates. Maximal degree in co-relation 1024. Up to 32 conditions per place. [2024-11-19 06:02:05,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 270 transitions, 584 flow [2024-11-19 06:02:05,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 270 transitions, 584 flow [2024-11-19 06:02:05,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:02:05,587 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;@6bac6a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:02:05,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-19 06:02:05,589 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:02:05,590 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:02:05,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:02:05,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:05,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:05,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:05,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:05,591 INFO L85 PathProgramCache]: Analyzing trace with hash 640713866, now seen corresponding path program 1 times [2024-11-19 06:02:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:05,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074758597] [2024-11-19 06:02:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:05,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:05,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074758597] [2024-11-19 06:02:05,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074758597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:05,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:05,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:05,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36179047] [2024-11-19 06:02:05,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:05,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:05,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:05,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-11-19 06:02:05,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 270 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:05,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:05,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-11-19 06:02:05,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:06,545 INFO L124 PetriNetUnfolderBase]: 1200/6906 cut-off events. [2024-11-19 06:02:06,545 INFO L125 PetriNetUnfolderBase]: For 652/686 co-relation queries the response was YES. [2024-11-19 06:02:06,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9251 conditions, 6906 events. 1200/6906 cut-off events. For 652/686 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 60434 event pairs, 985 based on Foata normal form. 836/6537 useless extension candidates. Maximal degree in co-relation 4715. Up to 2070 conditions per place. [2024-11-19 06:02:06,620 INFO L140 encePairwiseOnDemand]: 257/270 looper letters, 39 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2024-11-19 06:02:06,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 241 transitions, 608 flow [2024-11-19 06:02:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-19 06:02:06,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2024-11-19 06:02:06,626 INFO L175 Difference]: Start difference. First operand has 257 places, 270 transitions, 584 flow. Second operand 3 states and 688 transitions. [2024-11-19 06:02:06,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 241 transitions, 608 flow [2024-11-19 06:02:06,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 241 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:06,631 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 530 flow [2024-11-19 06:02:06,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=238, PETRI_TRANSITIONS=241} [2024-11-19 06:02:06,632 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -19 predicate places. [2024-11-19 06:02:06,633 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 530 flow [2024-11-19 06:02:06,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:06,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:06,634 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] [2024-11-19 06:02:06,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:02:06,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:06,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:06,634 INFO L85 PathProgramCache]: Analyzing trace with hash 672817750, now seen corresponding path program 1 times [2024-11-19 06:02:06,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:06,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970725903] [2024-11-19 06:02:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:06,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:06,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:06,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970725903] [2024-11-19 06:02:06,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970725903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:06,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:06,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:06,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519178183] [2024-11-19 06:02:06,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:06,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:06,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:06,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:06,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:06,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 270 [2024-11-19 06:02:06,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 241 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:06,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:06,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 270 [2024-11-19 06:02:06,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:07,836 INFO L124 PetriNetUnfolderBase]: 1650/7274 cut-off events. [2024-11-19 06:02:07,837 INFO L125 PetriNetUnfolderBase]: For 671/689 co-relation queries the response was YES. [2024-11-19 06:02:07,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10494 conditions, 7274 events. 1650/7274 cut-off events. For 671/689 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 60728 event pairs, 1169 based on Foata normal form. 0/6508 useless extension candidates. Maximal degree in co-relation 10463. Up to 2412 conditions per place. [2024-11-19 06:02:07,915 INFO L140 encePairwiseOnDemand]: 247/270 looper letters, 41 selfloop transitions, 11 changer transitions 0/233 dead transitions. [2024-11-19 06:02:07,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 233 transitions, 618 flow [2024-11-19 06:02:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2024-11-19 06:02:07,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7975308641975308 [2024-11-19 06:02:07,918 INFO L175 Difference]: Start difference. First operand has 238 places, 241 transitions, 530 flow. Second operand 3 states and 646 transitions. [2024-11-19 06:02:07,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 233 transitions, 618 flow [2024-11-19 06:02:07,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 233 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:07,923 INFO L231 Difference]: Finished difference. Result has 226 places, 229 transitions, 524 flow [2024-11-19 06:02:07,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=226, PETRI_TRANSITIONS=229} [2024-11-19 06:02:07,926 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -31 predicate places. [2024-11-19 06:02:07,926 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 229 transitions, 524 flow [2024-11-19 06:02:07,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:07,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:07,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:07,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:02:07,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:07,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:07,927 INFO L85 PathProgramCache]: Analyzing trace with hash -861913611, now seen corresponding path program 1 times [2024-11-19 06:02:07,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:07,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156907076] [2024-11-19 06:02:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:07,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:07,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:07,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156907076] [2024-11-19 06:02:07,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156907076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:07,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:07,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:02:07,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157519041] [2024-11-19 06:02:07,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:07,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:07,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:07,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:08,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 270 [2024-11-19 06:02:08,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 229 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:08,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:08,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 270 [2024-11-19 06:02:08,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:08,658 INFO L124 PetriNetUnfolderBase]: 630/4749 cut-off events. [2024-11-19 06:02:08,658 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-11-19 06:02:08,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6431 conditions, 4749 events. 630/4749 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 39440 event pairs, 228 based on Foata normal form. 42/4288 useless extension candidates. Maximal degree in co-relation 4117. Up to 682 conditions per place. [2024-11-19 06:02:08,703 INFO L140 encePairwiseOnDemand]: 258/270 looper letters, 37 selfloop transitions, 8 changer transitions 0/245 dead transitions. [2024-11-19 06:02:08,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 245 transitions, 670 flow [2024-11-19 06:02:08,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:08,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2024-11-19 06:02:08,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938271604938272 [2024-11-19 06:02:08,706 INFO L175 Difference]: Start difference. First operand has 226 places, 229 transitions, 524 flow. Second operand 3 states and 724 transitions. [2024-11-19 06:02:08,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 245 transitions, 670 flow [2024-11-19 06:02:08,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 245 transitions, 648 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:08,712 INFO L231 Difference]: Finished difference. Result has 227 places, 233 transitions, 550 flow [2024-11-19 06:02:08,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=227, PETRI_TRANSITIONS=233} [2024-11-19 06:02:08,713 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -30 predicate places. [2024-11-19 06:02:08,714 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 233 transitions, 550 flow [2024-11-19 06:02:08,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:08,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:08,714 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:08,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:02:08,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:08,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2085998738, now seen corresponding path program 1 times [2024-11-19 06:02:08,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496387183] [2024-11-19 06:02:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:08,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:08,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496387183] [2024-11-19 06:02:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496387183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:08,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:02:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263746691] [2024-11-19 06:02:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:08,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:02:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:02:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:09,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 270 [2024-11-19 06:02:09,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 233 transitions, 550 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:09,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:09,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 270 [2024-11-19 06:02:09,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:10,139 INFO L124 PetriNetUnfolderBase]: 1558/7334 cut-off events. [2024-11-19 06:02:10,139 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-11-19 06:02:10,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10976 conditions, 7334 events. 1558/7334 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 61182 event pairs, 74 based on Foata normal form. 0/6827 useless extension candidates. Maximal degree in co-relation 4981. Up to 2728 conditions per place. [2024-11-19 06:02:10,322 INFO L140 encePairwiseOnDemand]: 264/270 looper letters, 62 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2024-11-19 06:02:10,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 248 transitions, 716 flow [2024-11-19 06:02:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:02:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:02:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2024-11-19 06:02:10,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7993827160493827 [2024-11-19 06:02:10,325 INFO L175 Difference]: Start difference. First operand has 227 places, 233 transitions, 550 flow. Second operand 6 states and 1295 transitions. [2024-11-19 06:02:10,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 248 transitions, 716 flow [2024-11-19 06:02:10,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 248 transitions, 708 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:02:10,329 INFO L231 Difference]: Finished difference. Result has 230 places, 232 transitions, 552 flow [2024-11-19 06:02:10,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=230, PETRI_TRANSITIONS=232} [2024-11-19 06:02:10,334 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -27 predicate places. [2024-11-19 06:02:10,334 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 232 transitions, 552 flow [2024-11-19 06:02:10,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:10,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:10,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:10,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 06:02:10,335 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:10,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1106464142, now seen corresponding path program 1 times [2024-11-19 06:02:10,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:10,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659859932] [2024-11-19 06:02:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:10,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:10,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:10,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659859932] [2024-11-19 06:02:10,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659859932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:10,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:10,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:10,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027409814] [2024-11-19 06:02:10,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:10,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:10,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:10,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:10,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:10,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-11-19 06:02:10,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 232 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:10,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:10,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-11-19 06:02:10,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:11,346 INFO L124 PetriNetUnfolderBase]: 1177/6824 cut-off events. [2024-11-19 06:02:11,346 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-11-19 06:02:11,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9631 conditions, 6824 events. 1177/6824 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 58480 event pairs, 990 based on Foata normal form. 0/6258 useless extension candidates. Maximal degree in co-relation 4313. Up to 2049 conditions per place. [2024-11-19 06:02:11,409 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 43 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-11-19 06:02:11,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 235 transitions, 648 flow [2024-11-19 06:02:11,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:11,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-11-19 06:02:11,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419753086419753 [2024-11-19 06:02:11,412 INFO L175 Difference]: Start difference. First operand has 230 places, 232 transitions, 552 flow. Second operand 3 states and 682 transitions. [2024-11-19 06:02:11,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 235 transitions, 648 flow [2024-11-19 06:02:11,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 235 transitions, 636 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:02:11,417 INFO L231 Difference]: Finished difference. Result has 226 places, 231 transitions, 542 flow [2024-11-19 06:02:11,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=226, PETRI_TRANSITIONS=231} [2024-11-19 06:02:11,418 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -31 predicate places. [2024-11-19 06:02:11,418 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 231 transitions, 542 flow [2024-11-19 06:02:11,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:11,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:11,419 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:11,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:02:11,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:11,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:11,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1971927073, now seen corresponding path program 1 times [2024-11-19 06:02:11,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:11,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347225008] [2024-11-19 06:02:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:11,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:11,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:11,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347225008] [2024-11-19 06:02:11,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347225008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:02:11,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446754253] [2024-11-19 06:02:11,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:11,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:11,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:11,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:02:11,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:02:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:11,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 06:02:11,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:02:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 06:02:11,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:02:11,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446754253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:11,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:02:11,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 06:02:11,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781632889] [2024-11-19 06:02:11,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:11,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:11,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:11,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:11,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 270 [2024-11-19 06:02:11,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 231 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:11,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:11,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 270 [2024-11-19 06:02:11,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:12,641 INFO L124 PetriNetUnfolderBase]: 1177/6779 cut-off events. [2024-11-19 06:02:12,641 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-11-19 06:02:12,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9548 conditions, 6779 events. 1177/6779 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 58138 event pairs, 990 based on Foata normal form. 0/6210 useless extension candidates. Maximal degree in co-relation 4812. Up to 2049 conditions per place. [2024-11-19 06:02:12,703 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 43 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-19 06:02:12,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 234 transitions, 638 flow [2024-11-19 06:02:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-11-19 06:02:12,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419753086419753 [2024-11-19 06:02:12,705 INFO L175 Difference]: Start difference. First operand has 226 places, 231 transitions, 542 flow. Second operand 3 states and 682 transitions. [2024-11-19 06:02:12,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 234 transitions, 638 flow [2024-11-19 06:02:12,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 234 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:12,710 INFO L231 Difference]: Finished difference. Result has 225 places, 230 transitions, 540 flow [2024-11-19 06:02:12,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=225, PETRI_TRANSITIONS=230} [2024-11-19 06:02:12,710 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -32 predicate places. [2024-11-19 06:02:12,711 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 230 transitions, 540 flow [2024-11-19 06:02:12,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:12,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:12,711 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:12,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:02:12,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 06:02:12,912 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:12,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1588522226, now seen corresponding path program 1 times [2024-11-19 06:02:12,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:12,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812936440] [2024-11-19 06:02:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:12,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:12,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:12,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:12,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812936440] [2024-11-19 06:02:12,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812936440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:02:12,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048922291] [2024-11-19 06:02:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:12,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:12,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:02:12,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:02:12,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:02:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:13,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 06:02:13,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:02:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:13,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:02:13,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:13,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048922291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:02:13,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:02:13,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 06:02:13,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504762865] [2024-11-19 06:02:13,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:02:13,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 06:02:13,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:13,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 06:02:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:02:13,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 270 [2024-11-19 06:02:13,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 230 transitions, 540 flow. Second operand has 10 states, 10 states have (on average 219.3) internal successors, (2193), 10 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:13,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:13,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 270 [2024-11-19 06:02:13,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:13,527 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-11-19 06:02:13,527 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 06:02:13,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 390 events. 62/390 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1452 event pairs, 0 based on Foata normal form. 12/402 useless extension candidates. Maximal degree in co-relation 540. Up to 42 conditions per place. [2024-11-19 06:02:13,529 INFO L140 encePairwiseOnDemand]: 265/270 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-11-19 06:02:13,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-11-19 06:02:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 06:02:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 06:02:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1991 transitions. [2024-11-19 06:02:13,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8193415637860082 [2024-11-19 06:02:13,533 INFO L175 Difference]: Start difference. First operand has 225 places, 230 transitions, 540 flow. Second operand 9 states and 1991 transitions. [2024-11-19 06:02:13,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-11-19 06:02:13,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:13,535 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-11-19 06:02:13,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-19 06:02:13,535 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -182 predicate places. [2024-11-19 06:02:13,535 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-11-19 06:02:13,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 219.3) internal successors, (2193), 10 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:13,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:13,538 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:13,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 06:02:13,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:02:13,738 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:02:13,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:13,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2076479318, now seen corresponding path program 1 times [2024-11-19 06:02:13,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:13,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859509685] [2024-11-19 06:02:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:13,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:13,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:02:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:02:13,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:02:13,779 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:02:13,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-19 06:02:13,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-19 06:02:13,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-19 06:02:13,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-19 06:02:13,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-19 06:02:13,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-19 06:02:13,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-11-19 06:02:13,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-19 06:02:13,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-19 06:02:13,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-19 06:02:13,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-19 06:02:13,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-19 06:02:13,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-19 06:02:13,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-19 06:02:13,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-19 06:02:13,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:02:13,786 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:13,787 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:02:13,788 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 06:02:13,819 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-19 06:02:13,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 323 transitions, 718 flow [2024-11-19 06:02:14,645 INFO L124 PetriNetUnfolderBase]: 544/5922 cut-off events. [2024-11-19 06:02:14,645 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-19 06:02:14,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6358 conditions, 5922 events. 544/5922 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 46424 event pairs, 64 based on Foata normal form. 0/4701 useless extension candidates. Maximal degree in co-relation 3404. Up to 192 conditions per place. [2024-11-19 06:02:14,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 323 transitions, 718 flow [2024-11-19 06:02:14,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 323 transitions, 718 flow [2024-11-19 06:02:14,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:02:14,788 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;@6bac6a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:02:14,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-19 06:02:14,790 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:02:14,790 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:02:14,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:02:14,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:14,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:14,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:14,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:14,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1184181706, now seen corresponding path program 1 times [2024-11-19 06:02:14,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:14,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941548156] [2024-11-19 06:02:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:14,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:14,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941548156] [2024-11-19 06:02:14,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941548156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:14,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:14,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255812864] [2024-11-19 06:02:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:14,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:14,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 323 [2024-11-19 06:02:14,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 323 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:14,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:14,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 323 [2024-11-19 06:02:14,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:23,649 INFO L124 PetriNetUnfolderBase]: 12815/48824 cut-off events. [2024-11-19 06:02:23,649 INFO L125 PetriNetUnfolderBase]: For 7818/8364 co-relation queries the response was YES. [2024-11-19 06:02:24,297 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. [2024-11-19 06:02:24,663 INFO L140 encePairwiseOnDemand]: 307/323 looper letters, 47 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-11-19 06:02:24,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 282 transitions, 734 flow [2024-11-19 06:02:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2024-11-19 06:02:24,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2024-11-19 06:02:24,665 INFO L175 Difference]: Start difference. First operand has 305 places, 323 transitions, 718 flow. Second operand 3 states and 816 transitions. [2024-11-19 06:02:24,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 282 transitions, 734 flow [2024-11-19 06:02:24,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 282 transitions, 734 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:24,773 INFO L231 Difference]: Finished difference. Result has 276 places, 282 transitions, 640 flow [2024-11-19 06:02:24,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=276, PETRI_TRANSITIONS=282} [2024-11-19 06:02:24,779 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -29 predicate places. [2024-11-19 06:02:24,779 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 282 transitions, 640 flow [2024-11-19 06:02:24,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:24,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:24,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:24,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:02:24,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:24,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:24,780 INFO L85 PathProgramCache]: Analyzing trace with hash -903147977, now seen corresponding path program 1 times [2024-11-19 06:02:24,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:24,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823403939] [2024-11-19 06:02:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:24,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:24,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823403939] [2024-11-19 06:02:24,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823403939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:24,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:24,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:24,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435122877] [2024-11-19 06:02:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:24,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:24,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:24,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 323 [2024-11-19 06:02:24,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 282 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:24,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:24,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 323 [2024-11-19 06:02:24,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:34,671 INFO L124 PetriNetUnfolderBase]: 17515/54357 cut-off events. [2024-11-19 06:02:34,671 INFO L125 PetriNetUnfolderBase]: For 7723/8171 co-relation queries the response was YES. [2024-11-19 06:02:35,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83924 conditions, 54357 events. 17515/54357 cut-off events. For 7723/8171 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 587755 event pairs, 12762 based on Foata normal form. 0/49200 useless extension candidates. Maximal degree in co-relation 83891. Up to 22195 conditions per place. [2024-11-19 06:02:35,839 INFO L140 encePairwiseOnDemand]: 300/323 looper letters, 51 selfloop transitions, 11 changer transitions 0/276 dead transitions. [2024-11-19 06:02:35,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 276 transitions, 752 flow [2024-11-19 06:02:35,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:35,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2024-11-19 06:02:35,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7977296181630547 [2024-11-19 06:02:35,842 INFO L175 Difference]: Start difference. First operand has 276 places, 282 transitions, 640 flow. Second operand 3 states and 773 transitions. [2024-11-19 06:02:35,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 276 transitions, 752 flow [2024-11-19 06:02:35,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 276 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:35,859 INFO L231 Difference]: Finished difference. Result has 264 places, 270 transitions, 634 flow [2024-11-19 06:02:35,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=264, PETRI_TRANSITIONS=270} [2024-11-19 06:02:35,860 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -41 predicate places. [2024-11-19 06:02:35,860 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 270 transitions, 634 flow [2024-11-19 06:02:35,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:35,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:35,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:35,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 06:02:35,861 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:35,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:35,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1400313781, now seen corresponding path program 1 times [2024-11-19 06:02:35,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:35,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421780383] [2024-11-19 06:02:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:35,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:35,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421780383] [2024-11-19 06:02:35,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421780383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:35,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:35,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:02:35,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021898346] [2024-11-19 06:02:35,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:35,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:35,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 323 [2024-11-19 06:02:35,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 270 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:35,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:35,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 323 [2024-11-19 06:02:35,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:42,194 INFO L124 PetriNetUnfolderBase]: 8365/37548 cut-off events. [2024-11-19 06:02:42,195 INFO L125 PetriNetUnfolderBase]: For 10106/10660 co-relation queries the response was YES. [2024-11-19 06:02:42,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55379 conditions, 37548 events. 8365/37548 cut-off events. For 10106/10660 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 454844 event pairs, 3344 based on Foata normal form. 300/33580 useless extension candidates. Maximal degree in co-relation 37016. Up to 8245 conditions per place. [2024-11-19 06:02:43,183 INFO L140 encePairwiseOnDemand]: 311/323 looper letters, 51 selfloop transitions, 8 changer transitions 0/292 dead transitions. [2024-11-19 06:02:43,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 292 transitions, 832 flow [2024-11-19 06:02:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 855 transitions. [2024-11-19 06:02:43,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-11-19 06:02:43,185 INFO L175 Difference]: Start difference. First operand has 264 places, 270 transitions, 634 flow. Second operand 3 states and 855 transitions. [2024-11-19 06:02:43,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 292 transitions, 832 flow [2024-11-19 06:02:43,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 292 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:43,203 INFO L231 Difference]: Finished difference. Result has 265 places, 274 transitions, 660 flow [2024-11-19 06:02:43,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=265, PETRI_TRANSITIONS=274} [2024-11-19 06:02:43,204 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -40 predicate places. [2024-11-19 06:02:43,205 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 274 transitions, 660 flow [2024-11-19 06:02:43,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:43,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:43,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:43,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 06:02:43,205 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:43,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash 313854607, now seen corresponding path program 1 times [2024-11-19 06:02:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:43,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364042721] [2024-11-19 06:02:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:43,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364042721] [2024-11-19 06:02:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364042721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:02:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96586837] [2024-11-19 06:02:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:43,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:02:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:02:43,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:43,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 323 [2024-11-19 06:02:43,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 274 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:02:43,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:43,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 323 [2024-11-19 06:02:43,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:54,905 INFO L124 PetriNetUnfolderBase]: 19159/63586 cut-off events. [2024-11-19 06:02:54,905 INFO L125 PetriNetUnfolderBase]: For 9276/9276 co-relation queries the response was YES. [2024-11-19 06:02:55,720 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. [2024-11-19 06:02:56,169 INFO L140 encePairwiseOnDemand]: 317/323 looper letters, 78 selfloop transitions, 6 changer transitions 0/297 dead transitions. [2024-11-19 06:02:56,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 297 transitions, 874 flow [2024-11-19 06:02:56,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:02:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:02:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1545 transitions. [2024-11-19 06:02:56,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7972136222910217 [2024-11-19 06:02:56,173 INFO L175 Difference]: Start difference. First operand has 265 places, 274 transitions, 660 flow. Second operand 6 states and 1545 transitions. [2024-11-19 06:02:56,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 297 transitions, 874 flow [2024-11-19 06:02:56,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 297 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:02:56,189 INFO L231 Difference]: Finished difference. Result has 268 places, 273 transitions, 662 flow [2024-11-19 06:02:56,189 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} [2024-11-19 06:02:56,189 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -37 predicate places. [2024-11-19 06:02:56,190 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 273 transitions, 662 flow [2024-11-19 06:02:56,190 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) [2024-11-19 06:02:56,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:56,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:02:56,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 06:02:56,190 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:56,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:56,191 INFO L85 PathProgramCache]: Analyzing trace with hash 353194495, now seen corresponding path program 1 times [2024-11-19 06:02:56,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:56,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408767381] [2024-11-19 06:02:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:56,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:56,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:56,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408767381] [2024-11-19 06:02:56,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408767381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:56,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:56,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:56,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493120865] [2024-11-19 06:02:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:56,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:56,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:56,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 323 [2024-11-19 06:02:56,282 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) [2024-11-19 06:02:56,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:56,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 323 [2024-11-19 06:02:56,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand