./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2.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 eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:42:57,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:42:57,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:42:57,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:42:57,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:42:57,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:42:57,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:42:57,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:42:57,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:42:57,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:42:57,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:42:57,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:42:57,444 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:42:57,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:42:57,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:42:57,445 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:42:57,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:42:57,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:42:57,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:42:57,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:42:57,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:42:57,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:42:57,448 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:42:57,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:42:57,455 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:42:57,455 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:42:57,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:42:57,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:42:57,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:42:57,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:42:57,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:42:57,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:42:57,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:42:57,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:42:57,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:42:57,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:42:57,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:42:57,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:42:57,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:42:57,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:42:57,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:42:57,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 [2024-10-14 16:42:57,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:42:57,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:42:57,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:42:57,741 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:42:57,742 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:42:57,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2.i [2024-10-14 16:42:59,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:42:59,511 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:42:59,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2.i [2024-10-14 16:42:59,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06cb4b426/d01ccdfce9bc49ff9a8986fda34d70e6/FLAG3abcab3a0 [2024-10-14 16:42:59,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06cb4b426/d01ccdfce9bc49ff9a8986fda34d70e6 [2024-10-14 16:42:59,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:42:59,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:42:59,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:42:59,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:42:59,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:42:59,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:42:59" (1/1) ... [2024-10-14 16:42:59,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc739c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:59, skipping insertion in model container [2024-10-14 16:42:59,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:42:59" (1/1) ... [2024-10-14 16:42:59,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:43:00,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:43:00,250 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:43:00,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:43:00,458 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:43:00,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00 WrapperNode [2024-10-14 16:43:00,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:43:00,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:43:00,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:43:00,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:43:00,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,543 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 212 [2024-10-14 16:43:00,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:43:00,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:43:00,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:43:00,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:43:00,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:43:00,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:43:00,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:43:00,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:43:00,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (1/1) ... [2024-10-14 16:43:00,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:43:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:43:00,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 16:43:00,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 16:43:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 16:43:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 16:43:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 16:43:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 16:43:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 16:43:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-14 16:43:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-14 16:43:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 16:43:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:43:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-14 16:43:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-14 16:43:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:43:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:43:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:43:00,691 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:43:00,867 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:43:00,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:43:01,230 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:43:01,231 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:43:01,296 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:43:01,296 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-14 16:43:01,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:01 BoogieIcfgContainer [2024-10-14 16:43:01,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:43:01,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:43:01,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:43:01,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:43:01,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:42:59" (1/3) ... [2024-10-14 16:43:01,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31009c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:43:01, skipping insertion in model container [2024-10-14 16:43:01,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:00" (2/3) ... [2024-10-14 16:43:01,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31009c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:43:01, skipping insertion in model container [2024-10-14 16:43:01,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:01" (3/3) ... [2024-10-14 16:43:01,307 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2024-10-14 16:43:01,325 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:43:01,325 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-14 16:43:01,326 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:43:01,410 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-14 16:43:01,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 245 transitions, 510 flow [2024-10-14 16:43:01,617 INFO L124 PetriNetUnfolderBase]: 39/521 cut-off events. [2024-10-14 16:43:01,617 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 16:43:01,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 521 events. 39/521 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2077 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 277. Up to 8 conditions per place. [2024-10-14 16:43:01,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 245 transitions, 510 flow [2024-10-14 16:43:01,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 245 transitions, 510 flow [2024-10-14 16:43:01,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:43:01,661 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;@3b01f493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:43:01,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-14 16:43:01,665 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:43:01,666 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-14 16:43:01,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:43:01,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:01,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:01,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:01,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1619514553, now seen corresponding path program 1 times [2024-10-14 16:43:01,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:01,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297009604] [2024-10-14 16:43:01,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:01,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:01,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297009604] [2024-10-14 16:43:01,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297009604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:01,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:01,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:01,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331878871] [2024-10-14 16:43:01,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:01,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:01,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:02,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 245 [2024-10-14 16:43:02,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 245 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:02,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:02,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 245 [2024-10-14 16:43:02,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:02,232 INFO L124 PetriNetUnfolderBase]: 63/811 cut-off events. [2024-10-14 16:43:02,232 INFO L125 PetriNetUnfolderBase]: For 90/142 co-relation queries the response was YES. [2024-10-14 16:43:02,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 811 events. 63/811 cut-off events. For 90/142 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4183 event pairs, 50 based on Foata normal form. 67/749 useless extension candidates. Maximal degree in co-relation 575. Up to 128 conditions per place. [2024-10-14 16:43:02,243 INFO L140 encePairwiseOnDemand]: 224/245 looper letters, 18 selfloop transitions, 1 changer transitions 6/223 dead transitions. [2024-10-14 16:43:02,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 223 transitions, 504 flow [2024-10-14 16:43:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:02,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2024-10-14 16:43:02,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.889795918367347 [2024-10-14 16:43:02,270 INFO L175 Difference]: Start difference. First operand has 232 places, 245 transitions, 510 flow. Second operand 3 states and 654 transitions. [2024-10-14 16:43:02,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 223 transitions, 504 flow [2024-10-14 16:43:02,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 223 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:02,285 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 456 flow [2024-10-14 16:43:02,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-10-14 16:43:02,294 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -8 predicate places. [2024-10-14 16:43:02,294 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 456 flow [2024-10-14 16:43:02,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:02,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:02,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:02,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:43:02,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:02,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:02,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1334590845, now seen corresponding path program 1 times [2024-10-14 16:43:02,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:02,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324070705] [2024-10-14 16:43:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:02,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:02,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324070705] [2024-10-14 16:43:02,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324070705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:02,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:02,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:02,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968647885] [2024-10-14 16:43:02,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:02,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:02,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:02,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:02,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:02,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 245 [2024-10-14 16:43:02,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:02,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:02,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 245 [2024-10-14 16:43:02,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:02,751 INFO L124 PetriNetUnfolderBase]: 60/1400 cut-off events. [2024-10-14 16:43:02,751 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-14 16:43:02,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 1400 events. 60/1400 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8932 event pairs, 28 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 754. Up to 51 conditions per place. [2024-10-14 16:43:02,760 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 21 selfloop transitions, 1 changer transitions 0/226 dead transitions. [2024-10-14 16:43:02,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 226 transitions, 536 flow [2024-10-14 16:43:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:02,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:02,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-10-14 16:43:02,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908843537414966 [2024-10-14 16:43:02,763 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 456 flow. Second operand 3 states and 668 transitions. [2024-10-14 16:43:02,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 226 transitions, 536 flow [2024-10-14 16:43:02,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 226 transitions, 535 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:02,772 INFO L231 Difference]: Finished difference. Result has 218 places, 216 transitions, 455 flow [2024-10-14 16:43:02,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=218, PETRI_TRANSITIONS=216} [2024-10-14 16:43:02,776 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -14 predicate places. [2024-10-14 16:43:02,776 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 216 transitions, 455 flow [2024-10-14 16:43:02,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:02,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:02,777 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] [2024-10-14 16:43:02,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:43:02,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:02,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1577414619, now seen corresponding path program 1 times [2024-10-14 16:43:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339144255] [2024-10-14 16:43:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:02,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339144255] [2024-10-14 16:43:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339144255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:02,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:02,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:02,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106925292] [2024-10-14 16:43:02,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:02,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:02,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:02,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 245 [2024-10-14 16:43:02,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 216 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:02,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:02,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 245 [2024-10-14 16:43:02,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:03,077 INFO L124 PetriNetUnfolderBase]: 232/1677 cut-off events. [2024-10-14 16:43:03,078 INFO L125 PetriNetUnfolderBase]: For 230/534 co-relation queries the response was YES. [2024-10-14 16:43:03,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1677 events. 232/1677 cut-off events. For 230/534 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11013 event pairs, 52 based on Foata normal form. 19/1489 useless extension candidates. Maximal degree in co-relation 1100. Up to 355 conditions per place. [2024-10-14 16:43:03,089 INFO L140 encePairwiseOnDemand]: 233/245 looper letters, 15 selfloop transitions, 1 changer transitions 24/220 dead transitions. [2024-10-14 16:43:03,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 220 transitions, 529 flow [2024-10-14 16:43:03,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2024-10-14 16:43:03,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8653061224489796 [2024-10-14 16:43:03,093 INFO L175 Difference]: Start difference. First operand has 218 places, 216 transitions, 455 flow. Second operand 3 states and 636 transitions. [2024-10-14 16:43:03,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 220 transitions, 529 flow [2024-10-14 16:43:03,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 220 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:03,098 INFO L231 Difference]: Finished difference. Result has 213 places, 192 transitions, 408 flow [2024-10-14 16:43:03,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=213, PETRI_TRANSITIONS=192} [2024-10-14 16:43:03,101 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -19 predicate places. [2024-10-14 16:43:03,101 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 192 transitions, 408 flow [2024-10-14 16:43:03,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:03,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:03,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:43:03,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:03,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2045685338, now seen corresponding path program 1 times [2024-10-14 16:43:03,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:03,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145742899] [2024-10-14 16:43:03,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:03,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:03,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:03,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145742899] [2024-10-14 16:43:03,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145742899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:03,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788764023] [2024-10-14 16:43:03,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:03,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:03,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:03,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:03,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 245 [2024-10-14 16:43:03,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 192 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:03,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 245 [2024-10-14 16:43:03,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:03,377 INFO L124 PetriNetUnfolderBase]: 184/1638 cut-off events. [2024-10-14 16:43:03,378 INFO L125 PetriNetUnfolderBase]: For 148/252 co-relation queries the response was YES. [2024-10-14 16:43:03,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1638 events. 184/1638 cut-off events. For 148/252 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11150 event pairs, 156 based on Foata normal form. 0/1438 useless extension candidates. Maximal degree in co-relation 1838. Up to 362 conditions per place. [2024-10-14 16:43:03,389 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 18 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2024-10-14 16:43:03,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 189 transitions, 442 flow [2024-10-14 16:43:03,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-10-14 16:43:03,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8693877551020408 [2024-10-14 16:43:03,392 INFO L175 Difference]: Start difference. First operand has 213 places, 192 transitions, 408 flow. Second operand 3 states and 639 transitions. [2024-10-14 16:43:03,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 189 transitions, 442 flow [2024-10-14 16:43:03,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 189 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:03,399 INFO L231 Difference]: Finished difference. Result has 193 places, 189 transitions, 409 flow [2024-10-14 16:43:03,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=193, PETRI_TRANSITIONS=189} [2024-10-14 16:43:03,401 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -39 predicate places. [2024-10-14 16:43:03,402 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 189 transitions, 409 flow [2024-10-14 16:43:03,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:03,403 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] [2024-10-14 16:43:03,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 16:43:03,403 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:03,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1950122769, now seen corresponding path program 1 times [2024-10-14 16:43:03,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:03,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774234510] [2024-10-14 16:43:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:03,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:03,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:03,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:03,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774234510] [2024-10-14 16:43:03,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774234510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:03,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:03,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:03,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760382775] [2024-10-14 16:43:03,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:03,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:03,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:03,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:03,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 245 [2024-10-14 16:43:03,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 189 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:03,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 245 [2024-10-14 16:43:03,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:03,661 INFO L124 PetriNetUnfolderBase]: 124/1385 cut-off events. [2024-10-14 16:43:03,662 INFO L125 PetriNetUnfolderBase]: For 148/252 co-relation queries the response was YES. [2024-10-14 16:43:03,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1385 events. 124/1385 cut-off events. For 148/252 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8889 event pairs, 96 based on Foata normal form. 0/1196 useless extension candidates. Maximal degree in co-relation 868. Up to 250 conditions per place. [2024-10-14 16:43:03,670 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 17 selfloop transitions, 2 changer transitions 3/188 dead transitions. [2024-10-14 16:43:03,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 188 transitions, 447 flow [2024-10-14 16:43:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-10-14 16:43:03,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2024-10-14 16:43:03,673 INFO L175 Difference]: Start difference. First operand has 193 places, 189 transitions, 409 flow. Second operand 3 states and 642 transitions. [2024-10-14 16:43:03,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 188 transitions, 447 flow [2024-10-14 16:43:03,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 188 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:03,677 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 405 flow [2024-10-14 16:43:03,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2024-10-14 16:43:03,680 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -38 predicate places. [2024-10-14 16:43:03,680 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 405 flow [2024-10-14 16:43:03,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:03,682 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] [2024-10-14 16:43:03,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:43:03,682 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:03,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:03,695 INFO L85 PathProgramCache]: Analyzing trace with hash 737887062, now seen corresponding path program 1 times [2024-10-14 16:43:03,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:03,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845812690] [2024-10-14 16:43:03,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:03,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:03,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:03,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845812690] [2024-10-14 16:43:03,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845812690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:03,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:03,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:03,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283372789] [2024-10-14 16:43:03,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:03,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:03,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:03,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:03,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 245 [2024-10-14 16:43:03,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:03,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 245 [2024-10-14 16:43:03,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:03,939 INFO L124 PetriNetUnfolderBase]: 60/1200 cut-off events. [2024-10-14 16:43:03,940 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-14 16:43:03,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 1200 events. 60/1200 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7114 event pairs, 28 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 696. Up to 51 conditions per place. [2024-10-14 16:43:03,947 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 21 selfloop transitions, 1 changer transitions 0/194 dead transitions. [2024-10-14 16:43:03,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 194 transitions, 485 flow [2024-10-14 16:43:03,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:03,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:03,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-10-14 16:43:03,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908843537414966 [2024-10-14 16:43:03,951 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 405 flow. Second operand 3 states and 668 transitions. [2024-10-14 16:43:03,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 194 transitions, 485 flow [2024-10-14 16:43:03,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:03,957 INFO L231 Difference]: Finished difference. Result has 190 places, 184 transitions, 401 flow [2024-10-14 16:43:03,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=190, PETRI_TRANSITIONS=184} [2024-10-14 16:43:03,959 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-10-14 16:43:03,960 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 184 transitions, 401 flow [2024-10-14 16:43:03,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:03,961 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] [2024-10-14 16:43:03,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:43:03,962 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:03,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:03,962 INFO L85 PathProgramCache]: Analyzing trace with hash 517699852, now seen corresponding path program 1 times [2024-10-14 16:43:03,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:03,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011448737] [2024-10-14 16:43:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:03,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:04,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:04,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011448737] [2024-10-14 16:43:04,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011448737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:04,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:04,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:04,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522365380] [2024-10-14 16:43:04,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:04,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:04,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:04,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 245 [2024-10-14 16:43:04,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 184 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:04,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:04,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 245 [2024-10-14 16:43:04,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:04,221 INFO L124 PetriNetUnfolderBase]: 120/1323 cut-off events. [2024-10-14 16:43:04,221 INFO L125 PetriNetUnfolderBase]: For 154/258 co-relation queries the response was YES. [2024-10-14 16:43:04,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 1323 events. 120/1323 cut-off events. For 154/258 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8418 event pairs, 92 based on Foata normal form. 0/1140 useless extension candidates. Maximal degree in co-relation 835. Up to 234 conditions per place. [2024-10-14 16:43:04,228 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 18 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-10-14 16:43:04,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 183 transitions, 439 flow [2024-10-14 16:43:04,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:04,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2024-10-14 16:43:04,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8721088435374149 [2024-10-14 16:43:04,231 INFO L175 Difference]: Start difference. First operand has 190 places, 184 transitions, 401 flow. Second operand 3 states and 641 transitions. [2024-10-14 16:43:04,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 183 transitions, 439 flow [2024-10-14 16:43:04,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 183 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:04,236 INFO L231 Difference]: Finished difference. Result has 190 places, 183 transitions, 402 flow [2024-10-14 16:43:04,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=190, PETRI_TRANSITIONS=183} [2024-10-14 16:43:04,238 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-10-14 16:43:04,238 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 183 transitions, 402 flow [2024-10-14 16:43:04,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:04,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:04,240 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] [2024-10-14 16:43:04,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:43:04,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:04,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash 36510914, now seen corresponding path program 1 times [2024-10-14 16:43:04,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:04,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503702017] [2024-10-14 16:43:04,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:04,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:04,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:04,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503702017] [2024-10-14 16:43:04,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503702017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:04,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:04,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:43:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860450526] [2024-10-14 16:43:04,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:04,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:04,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:04,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:04,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:04,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 245 [2024-10-14 16:43:04,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 183 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:04,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:04,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 245 [2024-10-14 16:43:04,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:04,471 INFO L124 PetriNetUnfolderBase]: 58/1187 cut-off events. [2024-10-14 16:43:04,472 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-14 16:43:04,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1388 conditions, 1187 events. 58/1187 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7013 event pairs, 28 based on Foata normal form. 2/1046 useless extension candidates. Maximal degree in co-relation 706. Up to 110 conditions per place. [2024-10-14 16:43:04,479 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 16 selfloop transitions, 0 changer transitions 1/182 dead transitions. [2024-10-14 16:43:04,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 182 transitions, 431 flow [2024-10-14 16:43:04,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-10-14 16:43:04,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2024-10-14 16:43:04,482 INFO L175 Difference]: Start difference. First operand has 190 places, 183 transitions, 402 flow. Second operand 3 states and 642 transitions. [2024-10-14 16:43:04,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 182 transitions, 431 flow [2024-10-14 16:43:04,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 182 transitions, 423 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-14 16:43:04,486 INFO L231 Difference]: Finished difference. Result has 189 places, 181 transitions, 389 flow [2024-10-14 16:43:04,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=189, PETRI_TRANSITIONS=181} [2024-10-14 16:43:04,487 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -43 predicate places. [2024-10-14 16:43:04,488 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 181 transitions, 389 flow [2024-10-14 16:43:04,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:04,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:04,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:04,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 16:43:04,489 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:04,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1807168628, now seen corresponding path program 1 times [2024-10-14 16:43:04,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:04,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531338728] [2024-10-14 16:43:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:04,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:04,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:04,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531338728] [2024-10-14 16:43:04,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531338728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:04,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:04,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:04,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175946133] [2024-10-14 16:43:04,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:04,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:04,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:04,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:05,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 245 [2024-10-14 16:43:05,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 181 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:05,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:05,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 245 [2024-10-14 16:43:05,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:05,629 INFO L124 PetriNetUnfolderBase]: 650/3747 cut-off events. [2024-10-14 16:43:05,630 INFO L125 PetriNetUnfolderBase]: For 96/98 co-relation queries the response was YES. [2024-10-14 16:43:05,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5281 conditions, 3747 events. 650/3747 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 32704 event pairs, 296 based on Foata normal form. 0/3356 useless extension candidates. Maximal degree in co-relation 5275. Up to 1255 conditions per place. [2024-10-14 16:43:05,649 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 44 selfloop transitions, 5 changer transitions 4/188 dead transitions. [2024-10-14 16:43:05,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 188 transitions, 503 flow [2024-10-14 16:43:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2024-10-14 16:43:05,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7816326530612245 [2024-10-14 16:43:05,653 INFO L175 Difference]: Start difference. First operand has 189 places, 181 transitions, 389 flow. Second operand 6 states and 1149 transitions. [2024-10-14 16:43:05,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 188 transitions, 503 flow [2024-10-14 16:43:05,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 188 transitions, 501 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:05,657 INFO L231 Difference]: Finished difference. Result has 191 places, 176 transitions, 387 flow [2024-10-14 16:43:05,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=191, PETRI_TRANSITIONS=176} [2024-10-14 16:43:05,658 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -41 predicate places. [2024-10-14 16:43:05,658 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 176 transitions, 387 flow [2024-10-14 16:43:05,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:05,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:05,659 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:05,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 16:43:05,660 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:05,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash 34772814, now seen corresponding path program 1 times [2024-10-14 16:43:05,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:05,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683663735] [2024-10-14 16:43:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:05,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:05,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:05,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683663735] [2024-10-14 16:43:05,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683663735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:05,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:05,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 16:43:05,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479814199] [2024-10-14 16:43:05,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:05,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 16:43:05,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 16:43:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 16:43:05,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 245 [2024-10-14 16:43:05,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 176 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:05,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:05,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 245 [2024-10-14 16:43:05,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:06,047 INFO L124 PetriNetUnfolderBase]: 159/1512 cut-off events. [2024-10-14 16:43:06,048 INFO L125 PetriNetUnfolderBase]: For 114/216 co-relation queries the response was YES. [2024-10-14 16:43:06,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1969 conditions, 1512 events. 159/1512 cut-off events. For 114/216 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10354 event pairs, 120 based on Foata normal form. 11/1351 useless extension candidates. Maximal degree in co-relation 1963. Up to 209 conditions per place. [2024-10-14 16:43:06,058 INFO L140 encePairwiseOnDemand]: 233/245 looper letters, 42 selfloop transitions, 10 changer transitions 0/204 dead transitions. [2024-10-14 16:43:06,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 204 transitions, 571 flow [2024-10-14 16:43:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 16:43:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 16:43:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 866 transitions. [2024-10-14 16:43:06,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8836734693877552 [2024-10-14 16:43:06,061 INFO L175 Difference]: Start difference. First operand has 191 places, 176 transitions, 387 flow. Second operand 4 states and 866 transitions. [2024-10-14 16:43:06,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 204 transitions, 571 flow [2024-10-14 16:43:06,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 204 transitions, 561 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:06,067 INFO L231 Difference]: Finished difference. Result has 187 places, 184 transitions, 451 flow [2024-10-14 16:43:06,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=187, PETRI_TRANSITIONS=184} [2024-10-14 16:43:06,068 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -45 predicate places. [2024-10-14 16:43:06,069 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 184 transitions, 451 flow [2024-10-14 16:43:06,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:06,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:06,070 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:06,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 16:43:06,071 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:43:06,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2013852745, now seen corresponding path program 1 times [2024-10-14 16:43:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:06,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862147295] [2024-10-14 16:43:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:43:06,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:43:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:43:06,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:43:06,171 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:43:06,172 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-14 16:43:06,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-14 16:43:06,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-14 16:43:06,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-14 16:43:06,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-14 16:43:06,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-14 16:43:06,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-14 16:43:06,176 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-14 16:43:06,176 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-14 16:43:06,176 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-14 16:43:06,176 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-14 16:43:06,176 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-14 16:43:06,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-14 16:43:06,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-14 16:43:06,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-14 16:43:06,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-14 16:43:06,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-14 16:43:06,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-14 16:43:06,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-14 16:43:06,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-14 16:43:06,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-14 16:43:06,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 33 remaining) [2024-10-14 16:43:06,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-14 16:43:06,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-14 16:43:06,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-14 16:43:06,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-14 16:43:06,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-14 16:43:06,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 16:43:06,186 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:06,189 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:43:06,189 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 16:43:06,220 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-14 16:43:06,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 278 transitions, 600 flow [2024-10-14 16:43:06,392 INFO L124 PetriNetUnfolderBase]: 155/1630 cut-off events. [2024-10-14 16:43:06,392 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-14 16:43:06,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 1630 events. 155/1630 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9460 event pairs, 1 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 942. Up to 32 conditions per place. [2024-10-14 16:43:06,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 278 transitions, 600 flow [2024-10-14 16:43:06,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 278 transitions, 600 flow [2024-10-14 16:43:06,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:43:06,421 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;@3b01f493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:43:06,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-14 16:43:06,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:43:06,427 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-14 16:43:06,427 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:43:06,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:06,427 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:06,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:06,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash -226736677, now seen corresponding path program 1 times [2024-10-14 16:43:06,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:06,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780683212] [2024-10-14 16:43:06,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:06,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:06,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780683212] [2024-10-14 16:43:06,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780683212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:06,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744936192] [2024-10-14 16:43:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:06,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:06,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:06,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:06,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 278 [2024-10-14 16:43:06,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 278 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:06,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:06,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 278 [2024-10-14 16:43:06,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:08,071 INFO L124 PetriNetUnfolderBase]: 2218/10556 cut-off events. [2024-10-14 16:43:08,071 INFO L125 PetriNetUnfolderBase]: For 2052/5121 co-relation queries the response was YES. [2024-10-14 16:43:08,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14543 conditions, 10556 events. 2218/10556 cut-off events. For 2052/5121 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 112852 event pairs, 1905 based on Foata normal form. 1203/10033 useless extension candidates. Maximal degree in co-relation 9437. Up to 3249 conditions per place. [2024-10-14 16:43:08,157 INFO L140 encePairwiseOnDemand]: 251/278 looper letters, 28 selfloop transitions, 1 changer transitions 4/248 dead transitions. [2024-10-14 16:43:08,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 248 transitions, 598 flow [2024-10-14 16:43:08,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-10-14 16:43:08,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8609112709832134 [2024-10-14 16:43:08,160 INFO L175 Difference]: Start difference. First operand has 263 places, 278 transitions, 600 flow. Second operand 3 states and 718 transitions. [2024-10-14 16:43:08,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 248 transitions, 598 flow [2024-10-14 16:43:08,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 248 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:08,167 INFO L231 Difference]: Finished difference. Result has 249 places, 244 transitions, 534 flow [2024-10-14 16:43:08,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=249, PETRI_TRANSITIONS=244} [2024-10-14 16:43:08,168 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -14 predicate places. [2024-10-14 16:43:08,168 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 244 transitions, 534 flow [2024-10-14 16:43:08,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:08,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:08,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 16:43:08,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:08,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1561032317, now seen corresponding path program 1 times [2024-10-14 16:43:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222742333] [2024-10-14 16:43:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:08,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:08,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222742333] [2024-10-14 16:43:08,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222742333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:08,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:08,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:08,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753046304] [2024-10-14 16:43:08,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:08,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:08,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:08,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:08,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:08,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 278 [2024-10-14 16:43:08,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 244 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:08,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 278 [2024-10-14 16:43:08,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:10,787 INFO L124 PetriNetUnfolderBase]: 2492/17972 cut-off events. [2024-10-14 16:43:10,787 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-14 16:43:10,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22939 conditions, 17972 events. 2492/17972 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 226478 event pairs, 1706 based on Foata normal form. 0/14727 useless extension candidates. Maximal degree in co-relation 11439. Up to 1670 conditions per place. [2024-10-14 16:43:10,938 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 41 selfloop transitions, 1 changer transitions 0/263 dead transitions. [2024-10-14 16:43:10,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 263 transitions, 696 flow [2024-10-14 16:43:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-10-14 16:43:10,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882494004796163 [2024-10-14 16:43:10,941 INFO L175 Difference]: Start difference. First operand has 249 places, 244 transitions, 534 flow. Second operand 3 states and 736 transitions. [2024-10-14 16:43:10,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 263 transitions, 696 flow [2024-10-14 16:43:10,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 263 transitions, 695 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:10,949 INFO L231 Difference]: Finished difference. Result has 245 places, 243 transitions, 533 flow [2024-10-14 16:43:10,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=245, PETRI_TRANSITIONS=243} [2024-10-14 16:43:10,950 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -18 predicate places. [2024-10-14 16:43:10,950 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 243 transitions, 533 flow [2024-10-14 16:43:10,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:10,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:10,951 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] [2024-10-14 16:43:10,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 16:43:10,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:10,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:10,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1147303993, now seen corresponding path program 1 times [2024-10-14 16:43:10,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:10,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619216862] [2024-10-14 16:43:10,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:10,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:10,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619216862] [2024-10-14 16:43:10,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619216862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:10,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:10,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:10,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17787394] [2024-10-14 16:43:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:10,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:10,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:10,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:11,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 278 [2024-10-14 16:43:11,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 243 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:11,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:11,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 278 [2024-10-14 16:43:11,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:15,903 INFO L124 PetriNetUnfolderBase]: 14770/42373 cut-off events. [2024-10-14 16:43:15,903 INFO L125 PetriNetUnfolderBase]: For 10634/48790 co-relation queries the response was YES. [2024-10-14 16:43:16,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66312 conditions, 42373 events. 14770/42373 cut-off events. For 10634/48790 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 496504 event pairs, 4272 based on Foata normal form. 121/37401 useless extension candidates. Maximal degree in co-relation 33152. Up to 17809 conditions per place. [2024-10-14 16:43:16,145 INFO L140 encePairwiseOnDemand]: 264/278 looper letters, 41 selfloop transitions, 2 changer transitions 18/258 dead transitions. [2024-10-14 16:43:16,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 258 transitions, 702 flow [2024-10-14 16:43:16,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-10-14 16:43:16,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405275779376499 [2024-10-14 16:43:16,149 INFO L175 Difference]: Start difference. First operand has 245 places, 243 transitions, 533 flow. Second operand 3 states and 701 transitions. [2024-10-14 16:43:16,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 258 transitions, 702 flow [2024-10-14 16:43:16,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 258 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:16,157 INFO L231 Difference]: Finished difference. Result has 240 places, 223 transitions, 502 flow [2024-10-14 16:43:16,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=240, PETRI_TRANSITIONS=223} [2024-10-14 16:43:16,158 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -23 predicate places. [2024-10-14 16:43:16,159 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 223 transitions, 502 flow [2024-10-14 16:43:16,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:16,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:16,160 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:16,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 16:43:16,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:16,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 773826362, now seen corresponding path program 1 times [2024-10-14 16:43:16,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:16,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722532278] [2024-10-14 16:43:16,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:16,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:16,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:16,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722532278] [2024-10-14 16:43:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722532278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:16,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:16,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:16,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379664512] [2024-10-14 16:43:16,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:16,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:16,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:16,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:16,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:16,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 278 [2024-10-14 16:43:16,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 223 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:16,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:16,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 278 [2024-10-14 16:43:16,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:18,956 INFO L124 PetriNetUnfolderBase]: 6096/23780 cut-off events. [2024-10-14 16:43:18,956 INFO L125 PetriNetUnfolderBase]: For 5200/11740 co-relation queries the response was YES. [2024-10-14 16:43:19,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35749 conditions, 23780 events. 6096/23780 cut-off events. For 5200/11740 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 276820 event pairs, 5210 based on Foata normal form. 0/21026 useless extension candidates. Maximal degree in co-relation 28670. Up to 8524 conditions per place. [2024-10-14 16:43:19,111 INFO L140 encePairwiseOnDemand]: 272/278 looper letters, 28 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2024-10-14 16:43:19,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 220 transitions, 556 flow [2024-10-14 16:43:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-10-14 16:43:19,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8357314148681055 [2024-10-14 16:43:19,114 INFO L175 Difference]: Start difference. First operand has 240 places, 223 transitions, 502 flow. Second operand 3 states and 697 transitions. [2024-10-14 16:43:19,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 220 transitions, 556 flow [2024-10-14 16:43:19,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 220 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:19,121 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 504 flow [2024-10-14 16:43:19,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2024-10-14 16:43:19,122 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -39 predicate places. [2024-10-14 16:43:19,123 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 504 flow [2024-10-14 16:43:19,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:19,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:19,123 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] [2024-10-14 16:43:19,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 16:43:19,124 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:19,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:19,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1771233283, now seen corresponding path program 1 times [2024-10-14 16:43:19,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:19,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993513195] [2024-10-14 16:43:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:19,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:19,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:19,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993513195] [2024-10-14 16:43:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993513195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:19,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:19,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:19,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219669885] [2024-10-14 16:43:19,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:19,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:19,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:19,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2024-10-14 16:43:19,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:19,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:19,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2024-10-14 16:43:19,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:21,486 INFO L124 PetriNetUnfolderBase]: 4656/19695 cut-off events. [2024-10-14 16:43:21,486 INFO L125 PetriNetUnfolderBase]: For 5224/13372 co-relation queries the response was YES. [2024-10-14 16:43:21,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29201 conditions, 19695 events. 4656/19695 cut-off events. For 5224/13372 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 229745 event pairs, 3782 based on Foata normal form. 0/16702 useless extension candidates. Maximal degree in co-relation 24021. Up to 6578 conditions per place. [2024-10-14 16:43:21,597 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 28 selfloop transitions, 2 changer transitions 2/219 dead transitions. [2024-10-14 16:43:21,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 219 transitions, 562 flow [2024-10-14 16:43:21,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:21,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2024-10-14 16:43:21,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8393285371702638 [2024-10-14 16:43:21,600 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 504 flow. Second operand 3 states and 700 transitions. [2024-10-14 16:43:21,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 219 transitions, 562 flow [2024-10-14 16:43:21,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 219 transitions, 562 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:21,609 INFO L231 Difference]: Finished difference. Result has 225 places, 217 transitions, 502 flow [2024-10-14 16:43:21,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=225, PETRI_TRANSITIONS=217} [2024-10-14 16:43:21,610 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -38 predicate places. [2024-10-14 16:43:21,610 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 217 transitions, 502 flow [2024-10-14 16:43:21,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:21,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:21,611 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] [2024-10-14 16:43:21,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 16:43:21,611 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:21,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:21,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1142787818, now seen corresponding path program 1 times [2024-10-14 16:43:21,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:21,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259224943] [2024-10-14 16:43:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:21,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:21,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:21,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259224943] [2024-10-14 16:43:21,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259224943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:21,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:21,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:21,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078845954] [2024-10-14 16:43:21,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:21,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:21,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:21,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:21,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:21,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 278 [2024-10-14 16:43:21,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 217 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:21,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:21,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 278 [2024-10-14 16:43:21,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:23,347 INFO L124 PetriNetUnfolderBase]: 2546/16004 cut-off events. [2024-10-14 16:43:23,347 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-14 16:43:23,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21678 conditions, 16004 events. 2546/16004 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 193084 event pairs, 1706 based on Foata normal form. 0/13616 useless extension candidates. Maximal degree in co-relation 19193. Up to 1670 conditions per place. [2024-10-14 16:43:23,454 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 41 selfloop transitions, 1 changer transitions 0/236 dead transitions. [2024-10-14 16:43:23,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 236 transitions, 664 flow [2024-10-14 16:43:23,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-10-14 16:43:23,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882494004796163 [2024-10-14 16:43:23,456 INFO L175 Difference]: Start difference. First operand has 225 places, 217 transitions, 502 flow. Second operand 3 states and 736 transitions. [2024-10-14 16:43:23,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 236 transitions, 664 flow [2024-10-14 16:43:23,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 236 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:23,464 INFO L231 Difference]: Finished difference. Result has 222 places, 216 transitions, 498 flow [2024-10-14 16:43:23,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=222, PETRI_TRANSITIONS=216} [2024-10-14 16:43:23,464 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -41 predicate places. [2024-10-14 16:43:23,465 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 216 transitions, 498 flow [2024-10-14 16:43:23,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:23,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:23,466 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] [2024-10-14 16:43:23,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 16:43:23,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:23,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash -743422452, now seen corresponding path program 1 times [2024-10-14 16:43:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:23,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828665273] [2024-10-14 16:43:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:23,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:23,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:23,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828665273] [2024-10-14 16:43:23,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828665273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:23,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:23,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:23,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468191223] [2024-10-14 16:43:23,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:23,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:23,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:23,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:23,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:23,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2024-10-14 16:43:23,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 216 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:23,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:23,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2024-10-14 16:43:23,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:26,172 INFO L124 PetriNetUnfolderBase]: 5342/21325 cut-off events. [2024-10-14 16:43:26,172 INFO L125 PetriNetUnfolderBase]: For 5228/13428 co-relation queries the response was YES. [2024-10-14 16:43:26,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31977 conditions, 21325 events. 5342/21325 cut-off events. For 5228/13428 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 250819 event pairs, 4482 based on Foata normal form. 0/18200 useless extension candidates. Maximal degree in co-relation 25846. Up to 7458 conditions per place. [2024-10-14 16:43:26,282 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 29 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2024-10-14 16:43:26,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 215 transitions, 558 flow [2024-10-14 16:43:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2024-10-14 16:43:26,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8393285371702638 [2024-10-14 16:43:26,284 INFO L175 Difference]: Start difference. First operand has 222 places, 216 transitions, 498 flow. Second operand 3 states and 700 transitions. [2024-10-14 16:43:26,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 215 transitions, 558 flow [2024-10-14 16:43:26,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 215 transitions, 557 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:26,292 INFO L231 Difference]: Finished difference. Result has 222 places, 215 transitions, 499 flow [2024-10-14 16:43:26,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=222, PETRI_TRANSITIONS=215} [2024-10-14 16:43:26,293 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -41 predicate places. [2024-10-14 16:43:26,294 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 215 transitions, 499 flow [2024-10-14 16:43:26,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:26,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:26,294 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] [2024-10-14 16:43:26,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 16:43:26,295 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:26,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:26,295 INFO L85 PathProgramCache]: Analyzing trace with hash 203469122, now seen corresponding path program 1 times [2024-10-14 16:43:26,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:26,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659458355] [2024-10-14 16:43:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:26,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:26,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659458355] [2024-10-14 16:43:26,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659458355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:26,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:26,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:43:26,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517651321] [2024-10-14 16:43:26,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:26,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:26,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:26,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:26,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:26,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 278 [2024-10-14 16:43:26,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 215 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:26,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:26,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 278 [2024-10-14 16:43:26,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:28,449 INFO L124 PetriNetUnfolderBase]: 3752/19495 cut-off events. [2024-10-14 16:43:28,450 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-14 16:43:28,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27253 conditions, 19495 events. 3752/19495 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 236494 event pairs, 2730 based on Foata normal form. 2/16460 useless extension candidates. Maximal degree in co-relation 23378. Up to 5036 conditions per place. [2024-10-14 16:43:28,584 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 27 selfloop transitions, 0 changer transitions 1/214 dead transitions. [2024-10-14 16:43:28,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 214 transitions, 550 flow [2024-10-14 16:43:28,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-10-14 16:43:28,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405275779376499 [2024-10-14 16:43:28,586 INFO L175 Difference]: Start difference. First operand has 222 places, 215 transitions, 499 flow. Second operand 3 states and 701 transitions. [2024-10-14 16:43:28,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 214 transitions, 550 flow [2024-10-14 16:43:28,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 214 transitions, 542 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-14 16:43:28,592 INFO L231 Difference]: Finished difference. Result has 221 places, 213 transitions, 486 flow [2024-10-14 16:43:28,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=221, PETRI_TRANSITIONS=213} [2024-10-14 16:43:28,592 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -42 predicate places. [2024-10-14 16:43:28,593 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 213 transitions, 486 flow [2024-10-14 16:43:28,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:28,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:28,593 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:28,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 16:43:28,593 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:28,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:28,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2087288456, now seen corresponding path program 1 times [2024-10-14 16:43:28,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:28,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227124580] [2024-10-14 16:43:28,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:28,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:28,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:28,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227124580] [2024-10-14 16:43:28,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227124580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:28,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829768513] [2024-10-14 16:43:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:28,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:28,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:28,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:28,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:29,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 278 [2024-10-14 16:43:29,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 213 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:29,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:29,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 278 [2024-10-14 16:43:29,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:36,741 INFO L124 PetriNetUnfolderBase]: 20988/73427 cut-off events. [2024-10-14 16:43:36,741 INFO L125 PetriNetUnfolderBase]: For 3154/3218 co-relation queries the response was YES. [2024-10-14 16:43:37,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112170 conditions, 73427 events. 20988/73427 cut-off events. For 3154/3218 co-relation queries the response was YES. Maximal size of possible extension queue 1534. Compared 979042 event pairs, 9754 based on Foata normal form. 0/67098 useless extension candidates. Maximal degree in co-relation 112161. Up to 29941 conditions per place. [2024-10-14 16:43:37,180 INFO L140 encePairwiseOnDemand]: 271/278 looper letters, 64 selfloop transitions, 5 changer transitions 3/228 dead transitions. [2024-10-14 16:43:37,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 228 transitions, 656 flow [2024-10-14 16:43:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2024-10-14 16:43:37,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7583932853717026 [2024-10-14 16:43:37,183 INFO L175 Difference]: Start difference. First operand has 221 places, 213 transitions, 486 flow. Second operand 6 states and 1265 transitions. [2024-10-14 16:43:37,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 228 transitions, 656 flow [2024-10-14 16:43:37,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 228 transitions, 654 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:37,195 INFO L231 Difference]: Finished difference. Result has 223 places, 209 transitions, 486 flow [2024-10-14 16:43:37,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=223, PETRI_TRANSITIONS=209} [2024-10-14 16:43:37,196 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -40 predicate places. [2024-10-14 16:43:37,196 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 209 transitions, 486 flow [2024-10-14 16:43:37,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:37,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:37,197 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:37,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 16:43:37,197 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:37,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:37,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2116770914, now seen corresponding path program 1 times [2024-10-14 16:43:37,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:37,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614383494] [2024-10-14 16:43:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:37,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:37,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614383494] [2024-10-14 16:43:37,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614383494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:37,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:37,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 16:43:37,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021278885] [2024-10-14 16:43:37,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:37,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 16:43:37,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:37,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 16:43:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 16:43:37,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 278 [2024-10-14 16:43:37,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 209 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:37,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:37,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 278 [2024-10-14 16:43:37,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:40,547 INFO L124 PetriNetUnfolderBase]: 7222/29018 cut-off events. [2024-10-14 16:43:40,547 INFO L125 PetriNetUnfolderBase]: For 4520/9346 co-relation queries the response was YES. [2024-10-14 16:43:40,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43101 conditions, 29018 events. 7222/29018 cut-off events. For 4520/9346 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 354363 event pairs, 5043 based on Foata normal form. 137/25721 useless extension candidates. Maximal degree in co-relation 43092. Up to 5892 conditions per place. [2024-10-14 16:43:41,044 INFO L140 encePairwiseOnDemand]: 265/278 looper letters, 77 selfloop transitions, 11 changer transitions 0/262 dead transitions. [2024-10-14 16:43:41,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 262 transitions, 832 flow [2024-10-14 16:43:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 16:43:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 16:43:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 966 transitions. [2024-10-14 16:43:41,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8687050359712231 [2024-10-14 16:43:41,046 INFO L175 Difference]: Start difference. First operand has 223 places, 209 transitions, 486 flow. Second operand 4 states and 966 transitions. [2024-10-14 16:43:41,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 262 transitions, 832 flow [2024-10-14 16:43:41,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 262 transitions, 822 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:41,057 INFO L231 Difference]: Finished difference. Result has 220 places, 218 transitions, 558 flow [2024-10-14 16:43:41,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=558, PETRI_PLACES=220, PETRI_TRANSITIONS=218} [2024-10-14 16:43:41,058 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -43 predicate places. [2024-10-14 16:43:41,058 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 218 transitions, 558 flow [2024-10-14 16:43:41,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:41,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:41,059 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, 1, 1, 1] [2024-10-14 16:43:41,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 16:43:41,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:41,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2130107409, now seen corresponding path program 1 times [2024-10-14 16:43:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:41,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393692480] [2024-10-14 16:43:41,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:41,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:41,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:41,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393692480] [2024-10-14 16:43:41,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393692480] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:43:41,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871787091] [2024-10-14 16:43:41,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:41,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:43:41,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:43:41,185 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) [2024-10-14 16:43:41,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 16:43:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:41,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 16:43:41,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:43:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:41,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:43:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:41,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871787091] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:43:41,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:43:41,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-14 16:43:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862342244] [2024-10-14 16:43:41,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:43:41,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 16:43:41,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 16:43:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 16:43:42,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 278 [2024-10-14 16:43:42,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 218 transitions, 558 flow. Second operand has 13 states, 13 states have (on average 217.15384615384616) internal successors, (2823), 13 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:42,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:42,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 278 [2024-10-14 16:43:42,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:46,240 INFO L124 PetriNetUnfolderBase]: 8149/34410 cut-off events. [2024-10-14 16:43:46,240 INFO L125 PetriNetUnfolderBase]: For 7364/8250 co-relation queries the response was YES. [2024-10-14 16:43:46,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53244 conditions, 34410 events. 8149/34410 cut-off events. For 7364/8250 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 433958 event pairs, 3154 based on Foata normal form. 3/30657 useless extension candidates. Maximal degree in co-relation 53233. Up to 5348 conditions per place. [2024-10-14 16:43:46,426 INFO L140 encePairwiseOnDemand]: 262/278 looper letters, 100 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2024-10-14 16:43:46,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 291 transitions, 1026 flow [2024-10-14 16:43:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 16:43:46,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 16:43:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1842 transitions. [2024-10-14 16:43:46,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282374100719424 [2024-10-14 16:43:46,431 INFO L175 Difference]: Start difference. First operand has 220 places, 218 transitions, 558 flow. Second operand 8 states and 1842 transitions. [2024-10-14 16:43:46,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 291 transitions, 1026 flow [2024-10-14 16:43:46,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 291 transitions, 1024 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:46,445 INFO L231 Difference]: Finished difference. Result has 231 places, 226 transitions, 666 flow [2024-10-14 16:43:46,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=666, PETRI_PLACES=231, PETRI_TRANSITIONS=226} [2024-10-14 16:43:46,445 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2024-10-14 16:43:46,446 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 226 transitions, 666 flow [2024-10-14 16:43:46,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 217.15384615384616) internal successors, (2823), 13 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:46,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:46,447 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:46,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 16:43:46,647 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,SelfDestructingSolverStorable21 [2024-10-14 16:43:46,648 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 16:43:46,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:46,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1026004264, now seen corresponding path program 1 times [2024-10-14 16:43:46,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:46,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017202169] [2024-10-14 16:43:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017202169] [2024-10-14 16:43:46,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017202169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:46,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:46,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311539867] [2024-10-14 16:43:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:46,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:46,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:46,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:46,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:47,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 278 [2024-10-14 16:43:47,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 226 transitions, 666 flow. Second operand has 6 states, 6 states have (on average 200.83333333333334) internal successors, (1205), 6 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:47,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:47,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 278 [2024-10-14 16:43:47,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand