./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -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 c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:59:27,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:59:28,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:59:28,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:59:28,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:59:28,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:59:28,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:59:28,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:59:28,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:59:28,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:59:28,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:59:28,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:59:28,065 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:59:28,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:59:28,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:59:28,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:59:28,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:59:28,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:59:28,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:59:28,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:59:28,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:59:28,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:59:28,073 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:59:28,073 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:59:28,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:59:28,073 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:59:28,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:59:28,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:59:28,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:59:28,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:59:28,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:59:28,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:59:28,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:59:28,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:59:28,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:59:28,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:59:28,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:59:28,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:59:28,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:59:28,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:59:28,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:59:28,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-22 17:59:28,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:59:28,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:59:28,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:59:28,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:59:28,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:59:28,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-22 17:59:29,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:59:29,781 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:59:29,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-22 17:59:29,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e218892be/a274876bf7fa48308e36b8c1d21de226/FLAG0f9751a03 [2024-11-22 17:59:30,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e218892be/a274876bf7fa48308e36b8c1d21de226 [2024-11-22 17:59:30,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:59:30,179 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:59:30,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:59:30,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:59:30,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:59:30,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5452d0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30, skipping insertion in model container [2024-11-22 17:59:30,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:59:30,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:59:30,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:59:30,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:59:30,437 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:59:30,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30 WrapperNode [2024-11-22 17:59:30,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:59:30,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:59:30,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:59:30,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:59:30,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,451 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,472 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 189 [2024-11-22 17:59:30,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:59:30,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:59:30,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:59:30,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:59:30,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:59:30,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:59:30,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:59:30,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:59:30,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (1/1) ... [2024-11-22 17:59:30,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:59:30,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:59:30,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:59:30,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:59:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:59:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 17:59:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 17:59:30,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 17:59:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 17:59:30,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-22 17:59:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-22 17:59:30,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:59:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:59:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 17:59:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 17:59:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 17:59:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:59:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:59:30,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:59:30,607 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:59:30,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:59:30,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:59:31,162 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:59:31,162 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:59:31,371 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:59:31,371 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-22 17:59:31,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:59:31 BoogieIcfgContainer [2024-11-22 17:59:31,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:59:31,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:59:31,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:59:31,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:59:31,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:59:30" (1/3) ... [2024-11-22 17:59:31,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2919526b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:59:31, skipping insertion in model container [2024-11-22 17:59:31,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:30" (2/3) ... [2024-11-22 17:59:31,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2919526b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:59:31, skipping insertion in model container [2024-11-22 17:59:31,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:59:31" (3/3) ... [2024-11-22 17:59:31,383 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-22 17:59:31,396 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:59:31,396 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-11-22 17:59:31,396 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:59:31,484 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 17:59:31,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 344 transitions, 709 flow [2024-11-22 17:59:31,608 INFO L124 PetriNetUnfolderBase]: 20/341 cut-off events. [2024-11-22 17:59:31,609 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 17:59:31,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 341 events. 20/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 460 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 291. Up to 2 conditions per place. [2024-11-22 17:59:31,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 344 transitions, 709 flow [2024-11-22 17:59:31,622 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 324 transitions, 666 flow [2024-11-22 17:59:31,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:59:31,636 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;@1ffdedd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:59:31,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-22 17:59:31,640 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:59:31,640 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-22 17:59:31,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:59:31,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:31,640 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] [2024-11-22 17:59:31,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:31,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash 335780089, now seen corresponding path program 1 times [2024-11-22 17:59:31,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:31,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223050416] [2024-11-22 17:59:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:31,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223050416] [2024-11-22 17:59:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223050416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:31,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:31,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841336907] [2024-11-22 17:59:31,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:31,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:31,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:31,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:31,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 344 [2024-11-22 17:59:31,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 324 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:31,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:31,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 344 [2024-11-22 17:59:31,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:32,108 INFO L124 PetriNetUnfolderBase]: 85/884 cut-off events. [2024-11-22 17:59:32,108 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-22 17:59:32,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 884 events. 85/884 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4499 event pairs, 51 based on Foata normal form. 9/749 useless extension candidates. Maximal degree in co-relation 759. Up to 134 conditions per place. [2024-11-22 17:59:32,115 INFO L140 encePairwiseOnDemand]: 317/344 looper letters, 18 selfloop transitions, 2 changer transitions 6/299 dead transitions. [2024-11-22 17:59:32,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 656 flow [2024-11-22 17:59:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 933 transitions. [2024-11-22 17:59:32,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9040697674418605 [2024-11-22 17:59:32,134 INFO L175 Difference]: Start difference. First operand has 315 places, 324 transitions, 666 flow. Second operand 3 states and 933 transitions. [2024-11-22 17:59:32,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 656 flow [2024-11-22 17:59:32,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 644 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 17:59:32,143 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 596 flow [2024-11-22 17:59:32,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-11-22 17:59:32,148 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -17 predicate places. [2024-11-22 17:59:32,149 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 596 flow [2024-11-22 17:59:32,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:32,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:32,150 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] [2024-11-22 17:59:32,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:59:32,151 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:32,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash -948979931, now seen corresponding path program 1 times [2024-11-22 17:59:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381542826] [2024-11-22 17:59:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:32,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:32,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:32,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381542826] [2024-11-22 17:59:32,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381542826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:32,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34556483] [2024-11-22 17:59:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:32,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:32,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 344 [2024-11-22 17:59:32,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:32,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:32,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 344 [2024-11-22 17:59:32,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:32,374 INFO L124 PetriNetUnfolderBase]: 213/995 cut-off events. [2024-11-22 17:59:32,374 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-22 17:59:32,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 995 events. 213/995 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5265 event pairs, 128 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1281. Up to 297 conditions per place. [2024-11-22 17:59:32,379 INFO L140 encePairwiseOnDemand]: 337/344 looper letters, 21 selfloop transitions, 1 changer transitions 0/287 dead transitions. [2024-11-22 17:59:32,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 287 transitions, 628 flow [2024-11-22 17:59:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:32,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:32,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2024-11-22 17:59:32,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2024-11-22 17:59:32,381 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 596 flow. Second operand 3 states and 898 transitions. [2024-11-22 17:59:32,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 287 transitions, 628 flow [2024-11-22 17:59:32,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 287 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:32,385 INFO L231 Difference]: Finished difference. Result has 286 places, 287 transitions, 582 flow [2024-11-22 17:59:32,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=286, PETRI_TRANSITIONS=287} [2024-11-22 17:59:32,386 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-11-22 17:59:32,386 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 287 transitions, 582 flow [2024-11-22 17:59:32,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:32,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:32,387 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] [2024-11-22 17:59:32,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:59:32,387 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:32,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:32,388 INFO L85 PathProgramCache]: Analyzing trace with hash 785090757, now seen corresponding path program 1 times [2024-11-22 17:59:32,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:32,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827418939] [2024-11-22 17:59:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:32,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:32,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:32,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827418939] [2024-11-22 17:59:32,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827418939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:32,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:32,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:59:32,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044672101] [2024-11-22 17:59:32,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:32,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:59:32,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:32,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:59:32,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:59:33,052 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 344 [2024-11-22 17:59:33,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 287 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:33,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 344 [2024-11-22 17:59:33,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:33,247 INFO L124 PetriNetUnfolderBase]: 157/944 cut-off events. [2024-11-22 17:59:33,247 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-22 17:59:33,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 944 events. 157/944 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4613 event pairs, 100 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1221. Up to 263 conditions per place. [2024-11-22 17:59:33,253 INFO L140 encePairwiseOnDemand]: 326/344 looper letters, 41 selfloop transitions, 15 changer transitions 0/284 dead transitions. [2024-11-22 17:59:33,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 284 transitions, 688 flow [2024-11-22 17:59:33,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:59:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:59:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1613 transitions. [2024-11-22 17:59:33,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7814922480620154 [2024-11-22 17:59:33,256 INFO L175 Difference]: Start difference. First operand has 286 places, 287 transitions, 582 flow. Second operand 6 states and 1613 transitions. [2024-11-22 17:59:33,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 284 transitions, 688 flow [2024-11-22 17:59:33,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 284 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:59:33,260 INFO L231 Difference]: Finished difference. Result has 287 places, 284 transitions, 605 flow [2024-11-22 17:59:33,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=287, PETRI_TRANSITIONS=284} [2024-11-22 17:59:33,261 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -28 predicate places. [2024-11-22 17:59:33,261 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 605 flow [2024-11-22 17:59:33,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:33,263 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] [2024-11-22 17:59:33,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:59:33,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:33,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash 82838698, now seen corresponding path program 1 times [2024-11-22 17:59:33,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:33,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632296553] [2024-11-22 17:59:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:33,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:33,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:33,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632296553] [2024-11-22 17:59:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632296553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:33,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:33,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:33,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537124899] [2024-11-22 17:59:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:33,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:33,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:33,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:33,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:33,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-11-22 17:59:33,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 284 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:33,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-11-22 17:59:33,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:33,385 INFO L124 PetriNetUnfolderBase]: 45/439 cut-off events. [2024-11-22 17:59:33,385 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-22 17:59:33,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 439 events. 45/439 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1327 event pairs, 23 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 500. Up to 67 conditions per place. [2024-11-22 17:59:33,388 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2024-11-22 17:59:33,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 283 transitions, 633 flow [2024-11-22 17:59:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:33,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-11-22 17:59:33,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-11-22 17:59:33,390 INFO L175 Difference]: Start difference. First operand has 287 places, 284 transitions, 605 flow. Second operand 3 states and 919 transitions. [2024-11-22 17:59:33,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 283 transitions, 633 flow [2024-11-22 17:59:33,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 283 transitions, 603 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:59:33,394 INFO L231 Difference]: Finished difference. Result has 283 places, 283 transitions, 577 flow [2024-11-22 17:59:33,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=283, PETRI_TRANSITIONS=283} [2024-11-22 17:59:33,396 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-11-22 17:59:33,396 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 283 transitions, 577 flow [2024-11-22 17:59:33,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:33,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:33,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:59:33,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:33,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:33,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1979469290, now seen corresponding path program 1 times [2024-11-22 17:59:33,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:33,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099816727] [2024-11-22 17:59:33,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:33,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099816727] [2024-11-22 17:59:33,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099816727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:33,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:33,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:33,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238756367] [2024-11-22 17:59:33,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:33,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:33,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-11-22 17:59:33,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 283 transitions, 577 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:33,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-11-22 17:59:33,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:33,517 INFO L124 PetriNetUnfolderBase]: 45/438 cut-off events. [2024-11-22 17:59:33,517 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-22 17:59:33,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 438 events. 45/438 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1305 event pairs, 23 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 486. Up to 67 conditions per place. [2024-11-22 17:59:33,520 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-11-22 17:59:33,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 282 transitions, 605 flow [2024-11-22 17:59:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-11-22 17:59:33,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-11-22 17:59:33,522 INFO L175 Difference]: Start difference. First operand has 283 places, 283 transitions, 577 flow. Second operand 3 states and 919 transitions. [2024-11-22 17:59:33,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 282 transitions, 605 flow [2024-11-22 17:59:33,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 282 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:33,525 INFO L231 Difference]: Finished difference. Result has 282 places, 282 transitions, 575 flow [2024-11-22 17:59:33,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=282, PETRI_TRANSITIONS=282} [2024-11-22 17:59:33,526 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-11-22 17:59:33,526 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 282 transitions, 575 flow [2024-11-22 17:59:33,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:33,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:33,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:59:33,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:33,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash -166747507, now seen corresponding path program 1 times [2024-11-22 17:59:33,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:33,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608417106] [2024-11-22 17:59:33,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:33,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:33,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:33,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608417106] [2024-11-22 17:59:33,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608417106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:33,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:33,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:33,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350529725] [2024-11-22 17:59:33,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:33,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:33,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:33,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:33,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:33,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-22 17:59:33,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 282 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:33,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-22 17:59:33,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:33,663 INFO L124 PetriNetUnfolderBase]: 28/352 cut-off events. [2024-11-22 17:59:33,663 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-22 17:59:33,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 352 events. 28/352 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 779 event pairs, 12 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 374. Up to 44 conditions per place. [2024-11-22 17:59:33,665 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 12 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-11-22 17:59:33,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 281 transitions, 601 flow [2024-11-22 17:59:33,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:33,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:33,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-22 17:59:33,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8924418604651163 [2024-11-22 17:59:33,668 INFO L175 Difference]: Start difference. First operand has 282 places, 282 transitions, 575 flow. Second operand 3 states and 921 transitions. [2024-11-22 17:59:33,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 281 transitions, 601 flow [2024-11-22 17:59:33,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 281 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:33,671 INFO L231 Difference]: Finished difference. Result has 281 places, 281 transitions, 573 flow [2024-11-22 17:59:33,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=281, PETRI_TRANSITIONS=281} [2024-11-22 17:59:33,672 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -34 predicate places. [2024-11-22 17:59:33,673 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 281 transitions, 573 flow [2024-11-22 17:59:33,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:33,674 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:33,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:59:33,674 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:33,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2088733689, now seen corresponding path program 1 times [2024-11-22 17:59:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631352877] [2024-11-22 17:59:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:33,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:33,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631352877] [2024-11-22 17:59:33,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631352877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:33,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:33,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:33,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665424645] [2024-11-22 17:59:33,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:33,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:33,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:33,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:33,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:33,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-22 17:59:33,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 281 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:33,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-22 17:59:33,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:33,851 INFO L124 PetriNetUnfolderBase]: 84/726 cut-off events. [2024-11-22 17:59:33,852 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-22 17:59:33,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 726 events. 84/726 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3137 event pairs, 23 based on Foata normal form. 0/652 useless extension candidates. Maximal degree in co-relation 838. Up to 70 conditions per place. [2024-11-22 17:59:33,855 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 16 selfloop transitions, 3 changer transitions 0/284 dead transitions. [2024-11-22 17:59:33,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 284 transitions, 619 flow [2024-11-22 17:59:33,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 927 transitions. [2024-11-22 17:59:33,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8982558139534884 [2024-11-22 17:59:33,858 INFO L175 Difference]: Start difference. First operand has 281 places, 281 transitions, 573 flow. Second operand 3 states and 927 transitions. [2024-11-22 17:59:33,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 284 transitions, 619 flow [2024-11-22 17:59:33,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:33,861 INFO L231 Difference]: Finished difference. Result has 279 places, 279 transitions, 571 flow [2024-11-22 17:59:33,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=279, PETRI_TRANSITIONS=279} [2024-11-22 17:59:33,862 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-11-22 17:59:33,862 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 279 transitions, 571 flow [2024-11-22 17:59:33,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:33,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:33,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:59:33,863 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:33,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1523378363, now seen corresponding path program 1 times [2024-11-22 17:59:33,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:33,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073596139] [2024-11-22 17:59:33,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:33,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:33,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:33,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073596139] [2024-11-22 17:59:33,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073596139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:33,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:33,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:33,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539078687] [2024-11-22 17:59:33,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:33,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:33,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:33,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:33,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:33,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-11-22 17:59:33,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:33,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:33,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-11-22 17:59:33,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:33,990 INFO L124 PetriNetUnfolderBase]: 76/765 cut-off events. [2024-11-22 17:59:33,990 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-22 17:59:33,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 765 events. 76/765 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3511 event pairs, 8 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 878. Up to 99 conditions per place. [2024-11-22 17:59:33,994 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 19 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-11-22 17:59:33,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 287 transitions, 634 flow [2024-11-22 17:59:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-11-22 17:59:33,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079457364341085 [2024-11-22 17:59:33,996 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 571 flow. Second operand 3 states and 937 transitions. [2024-11-22 17:59:33,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 287 transitions, 634 flow [2024-11-22 17:59:33,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 287 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:34,002 INFO L231 Difference]: Finished difference. Result has 279 places, 280 transitions, 577 flow [2024-11-22 17:59:34,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=279, PETRI_TRANSITIONS=280} [2024-11-22 17:59:34,003 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-11-22 17:59:34,003 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 280 transitions, 577 flow [2024-11-22 17:59:34,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:34,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:34,004 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:34,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:59:34,004 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:34,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:34,005 INFO L85 PathProgramCache]: Analyzing trace with hash -273573217, now seen corresponding path program 1 times [2024-11-22 17:59:34,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:34,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442510424] [2024-11-22 17:59:34,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:34,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:34,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:34,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442510424] [2024-11-22 17:59:34,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442510424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:34,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:34,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:59:34,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281851448] [2024-11-22 17:59:34,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:34,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:59:34,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:34,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:59:34,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:59:34,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 344 [2024-11-22 17:59:34,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 280 transitions, 577 flow. Second operand has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:34,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:34,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 344 [2024-11-22 17:59:34,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:34,812 INFO L124 PetriNetUnfolderBase]: 193/1399 cut-off events. [2024-11-22 17:59:34,812 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-22 17:59:34,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 1399 events. 193/1399 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6802 event pairs, 96 based on Foata normal form. 9/1319 useless extension candidates. Maximal degree in co-relation 1898. Up to 201 conditions per place. [2024-11-22 17:59:34,818 INFO L140 encePairwiseOnDemand]: 315/344 looper letters, 52 selfloop transitions, 42 changer transitions 0/331 dead transitions. [2024-11-22 17:59:34,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 331 transitions, 885 flow [2024-11-22 17:59:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:59:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 17:59:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2852 transitions. [2024-11-22 17:59:34,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2024-11-22 17:59:34,824 INFO L175 Difference]: Start difference. First operand has 279 places, 280 transitions, 577 flow. Second operand 10 states and 2852 transitions. [2024-11-22 17:59:34,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 331 transitions, 885 flow [2024-11-22 17:59:34,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 331 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:34,829 INFO L231 Difference]: Finished difference. Result has 292 places, 305 transitions, 769 flow [2024-11-22 17:59:34,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=769, PETRI_PLACES=292, PETRI_TRANSITIONS=305} [2024-11-22 17:59:34,830 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-11-22 17:59:34,830 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 305 transitions, 769 flow [2024-11-22 17:59:34,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:34,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:34,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:34,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:59:34,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:34,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:34,833 INFO L85 PathProgramCache]: Analyzing trace with hash 172631913, now seen corresponding path program 1 times [2024-11-22 17:59:34,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:34,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008025405] [2024-11-22 17:59:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:34,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:34,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:34,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008025405] [2024-11-22 17:59:34,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008025405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:34,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:34,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:34,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739415797] [2024-11-22 17:59:34,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:34,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:34,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:34,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:34,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 344 [2024-11-22 17:59:34,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 305 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:34,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:34,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 344 [2024-11-22 17:59:34,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:35,027 INFO L124 PetriNetUnfolderBase]: 81/937 cut-off events. [2024-11-22 17:59:35,027 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2024-11-22 17:59:35,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 937 events. 81/937 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3505 event pairs, 30 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 1189. Up to 112 conditions per place. [2024-11-22 17:59:35,032 INFO L140 encePairwiseOnDemand]: 342/344 looper letters, 11 selfloop transitions, 1 changer transitions 0/304 dead transitions. [2024-11-22 17:59:35,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 304 transitions, 791 flow [2024-11-22 17:59:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:35,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-11-22 17:59:35,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9011627906976745 [2024-11-22 17:59:35,034 INFO L175 Difference]: Start difference. First operand has 292 places, 305 transitions, 769 flow. Second operand 3 states and 930 transitions. [2024-11-22 17:59:35,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 304 transitions, 791 flow [2024-11-22 17:59:35,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 304 transitions, 791 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:35,040 INFO L231 Difference]: Finished difference. Result has 293 places, 304 transitions, 769 flow [2024-11-22 17:59:35,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=293, PETRI_TRANSITIONS=304} [2024-11-22 17:59:35,042 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-11-22 17:59:35,042 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 304 transitions, 769 flow [2024-11-22 17:59:35,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:35,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:35,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:35,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:59:35,044 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:35,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:35,044 INFO L85 PathProgramCache]: Analyzing trace with hash 34836619, now seen corresponding path program 1 times [2024-11-22 17:59:35,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:35,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011254309] [2024-11-22 17:59:35,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:35,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:35,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:35,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011254309] [2024-11-22 17:59:35,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011254309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:35,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:35,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:35,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504255878] [2024-11-22 17:59:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:35,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:35,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:35,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-22 17:59:35,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 304 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:35,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:35,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-22 17:59:35,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:35,256 INFO L124 PetriNetUnfolderBase]: 128/1063 cut-off events. [2024-11-22 17:59:35,256 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-22 17:59:35,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 1063 events. 128/1063 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4499 event pairs, 37 based on Foata normal form. 4/1009 useless extension candidates. Maximal degree in co-relation 1424. Up to 136 conditions per place. [2024-11-22 17:59:35,261 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 15 selfloop transitions, 2 changer transitions 28/307 dead transitions. [2024-11-22 17:59:35,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 307 transitions, 817 flow [2024-11-22 17:59:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2024-11-22 17:59:35,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972868217054264 [2024-11-22 17:59:35,263 INFO L175 Difference]: Start difference. First operand has 293 places, 304 transitions, 769 flow. Second operand 3 states and 926 transitions. [2024-11-22 17:59:35,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 307 transitions, 817 flow [2024-11-22 17:59:35,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 307 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:59:35,268 INFO L231 Difference]: Finished difference. Result has 292 places, 274 transitions, 644 flow [2024-11-22 17:59:35,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=292, PETRI_TRANSITIONS=274} [2024-11-22 17:59:35,268 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-11-22 17:59:35,269 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 274 transitions, 644 flow [2024-11-22 17:59:35,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:35,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:35,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:35,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:59:35,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:35,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1634000130, now seen corresponding path program 1 times [2024-11-22 17:59:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858850423] [2024-11-22 17:59:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:35,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:35,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:35,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858850423] [2024-11-22 17:59:35,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858850423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:35,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:35,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:59:35,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251544793] [2024-11-22 17:59:35,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:35,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:59:35,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:59:35,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:59:35,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-11-22 17:59:35,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 274 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:35,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:35,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-11-22 17:59:35,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:36,298 INFO L124 PetriNetUnfolderBase]: 228/1362 cut-off events. [2024-11-22 17:59:36,298 INFO L125 PetriNetUnfolderBase]: For 162/169 co-relation queries the response was YES. [2024-11-22 17:59:36,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 1362 events. 228/1362 cut-off events. For 162/169 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8198 event pairs, 74 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1978. Up to 282 conditions per place. [2024-11-22 17:59:36,305 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 47 selfloop transitions, 10 changer transitions 0/299 dead transitions. [2024-11-22 17:59:36,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 299 transitions, 824 flow [2024-11-22 17:59:36,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:59:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:59:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-11-22 17:59:36,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-11-22 17:59:36,310 INFO L175 Difference]: Start difference. First operand has 292 places, 274 transitions, 644 flow. Second operand 6 states and 1773 transitions. [2024-11-22 17:59:36,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 299 transitions, 824 flow [2024-11-22 17:59:36,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 299 transitions, 768 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-11-22 17:59:36,316 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 668 flow [2024-11-22 17:59:36,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=668, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2024-11-22 17:59:36,318 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-11-22 17:59:36,318 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 668 flow [2024-11-22 17:59:36,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:36,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:36,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:36,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:59:36,319 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:36,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:36,320 INFO L85 PathProgramCache]: Analyzing trace with hash 999190661, now seen corresponding path program 1 times [2024-11-22 17:59:36,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:36,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042744072] [2024-11-22 17:59:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:36,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:36,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:36,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:36,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042744072] [2024-11-22 17:59:36,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042744072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:36,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:36,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:36,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728374406] [2024-11-22 17:59:36,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:36,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:36,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:36,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:36,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:36,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-22 17:59:36,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:36,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:36,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-22 17:59:36,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:36,590 INFO L124 PetriNetUnfolderBase]: 254/1386 cut-off events. [2024-11-22 17:59:36,591 INFO L125 PetriNetUnfolderBase]: For 672/672 co-relation queries the response was YES. [2024-11-22 17:59:36,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2298 conditions, 1386 events. 254/1386 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8323 event pairs, 84 based on Foata normal form. 0/1298 useless extension candidates. Maximal degree in co-relation 2260. Up to 265 conditions per place. [2024-11-22 17:59:36,599 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 22 selfloop transitions, 2 changer transitions 0/288 dead transitions. [2024-11-22 17:59:36,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 288 transitions, 738 flow [2024-11-22 17:59:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-11-22 17:59:36,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-11-22 17:59:36,602 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 668 flow. Second operand 3 states and 925 transitions. [2024-11-22 17:59:36,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 288 transitions, 738 flow [2024-11-22 17:59:36,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 288 transitions, 728 flow, removed 5 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:36,607 INFO L231 Difference]: Finished difference. Result has 283 places, 282 transitions, 662 flow [2024-11-22 17:59:36,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=283, PETRI_TRANSITIONS=282} [2024-11-22 17:59:36,608 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-11-22 17:59:36,608 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 282 transitions, 662 flow [2024-11-22 17:59:36,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:36,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:36,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:36,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:59:36,609 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:36,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:36,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1211790518, now seen corresponding path program 1 times [2024-11-22 17:59:36,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:36,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221362] [2024-11-22 17:59:36,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:36,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:36,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:36,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:36,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221362] [2024-11-22 17:59:36,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:36,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:36,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:36,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451202026] [2024-11-22 17:59:36,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:36,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:36,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:36,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-11-22 17:59:36,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 282 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:36,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:36,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-11-22 17:59:36,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:36,837 INFO L124 PetriNetUnfolderBase]: 187/1151 cut-off events. [2024-11-22 17:59:36,837 INFO L125 PetriNetUnfolderBase]: For 407/418 co-relation queries the response was YES. [2024-11-22 17:59:36,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 1151 events. 187/1151 cut-off events. For 407/418 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6057 event pairs, 4 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1808. Up to 213 conditions per place. [2024-11-22 17:59:36,845 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 21 selfloop transitions, 7 changer transitions 0/293 dead transitions. [2024-11-22 17:59:36,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 293 transitions, 764 flow [2024-11-22 17:59:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2024-11-22 17:59:36,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060077519379846 [2024-11-22 17:59:36,847 INFO L175 Difference]: Start difference. First operand has 283 places, 282 transitions, 662 flow. Second operand 3 states and 935 transitions. [2024-11-22 17:59:36,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 293 transitions, 764 flow [2024-11-22 17:59:36,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 293 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:36,851 INFO L231 Difference]: Finished difference. Result has 283 places, 287 transitions, 721 flow [2024-11-22 17:59:36,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=283, PETRI_TRANSITIONS=287} [2024-11-22 17:59:36,852 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-11-22 17:59:36,852 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 287 transitions, 721 flow [2024-11-22 17:59:36,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:36,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:36,853 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:36,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:59:36,853 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:36,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:36,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2014053489, now seen corresponding path program 1 times [2024-11-22 17:59:36,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:36,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550271232] [2024-11-22 17:59:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:36,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550271232] [2024-11-22 17:59:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550271232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:38,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:38,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-22 17:59:38,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479812458] [2024-11-22 17:59:38,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:38,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 17:59:38,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:38,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 17:59:38,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-11-22 17:59:40,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 344 [2024-11-22 17:59:40,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 287 transitions, 721 flow. Second operand has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:40,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:40,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 344 [2024-11-22 17:59:40,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:41,868 INFO L124 PetriNetUnfolderBase]: 672/2542 cut-off events. [2024-11-22 17:59:41,868 INFO L125 PetriNetUnfolderBase]: For 915/946 co-relation queries the response was YES. [2024-11-22 17:59:41,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4685 conditions, 2542 events. 672/2542 cut-off events. For 915/946 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18430 event pairs, 168 based on Foata normal form. 26/2406 useless extension candidates. Maximal degree in co-relation 4642. Up to 363 conditions per place. [2024-11-22 17:59:41,881 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 77 selfloop transitions, 35 changer transitions 0/318 dead transitions. [2024-11-22 17:59:41,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 318 transitions, 1037 flow [2024-11-22 17:59:41,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-22 17:59:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-22 17:59:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8098 transitions. [2024-11-22 17:59:41,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356468023255814 [2024-11-22 17:59:41,894 INFO L175 Difference]: Start difference. First operand has 283 places, 287 transitions, 721 flow. Second operand 32 states and 8098 transitions. [2024-11-22 17:59:41,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 318 transitions, 1037 flow [2024-11-22 17:59:41,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 318 transitions, 1037 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:41,900 INFO L231 Difference]: Finished difference. Result has 313 places, 286 transitions, 787 flow [2024-11-22 17:59:41,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=787, PETRI_PLACES=313, PETRI_TRANSITIONS=286} [2024-11-22 17:59:41,901 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -2 predicate places. [2024-11-22 17:59:41,902 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 286 transitions, 787 flow [2024-11-22 17:59:41,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:41,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:41,903 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:41,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:59:41,904 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:41,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:41,904 INFO L85 PathProgramCache]: Analyzing trace with hash 336067950, now seen corresponding path program 1 times [2024-11-22 17:59:41,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:41,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089020753] [2024-11-22 17:59:41,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:41,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:42,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:42,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089020753] [2024-11-22 17:59:42,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089020753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:42,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:42,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:59:42,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417332849] [2024-11-22 17:59:42,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:42,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:59:42,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:42,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:59:42,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:59:42,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-11-22 17:59:42,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 286 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:42,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:42,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-11-22 17:59:42,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:42,826 INFO L124 PetriNetUnfolderBase]: 370/1801 cut-off events. [2024-11-22 17:59:42,826 INFO L125 PetriNetUnfolderBase]: For 1458/1466 co-relation queries the response was YES. [2024-11-22 17:59:42,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3466 conditions, 1801 events. 370/1801 cut-off events. For 1458/1466 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 11607 event pairs, 85 based on Foata normal form. 8/1711 useless extension candidates. Maximal degree in co-relation 3425. Up to 413 conditions per place. [2024-11-22 17:59:42,841 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 56 selfloop transitions, 15 changer transitions 0/315 dead transitions. [2024-11-22 17:59:42,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 1047 flow [2024-11-22 17:59:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:59:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:59:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-11-22 17:59:42,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-11-22 17:59:42,847 INFO L175 Difference]: Start difference. First operand has 313 places, 286 transitions, 787 flow. Second operand 6 states and 1773 transitions. [2024-11-22 17:59:42,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 1047 flow [2024-11-22 17:59:42,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 315 transitions, 975 flow, removed 0 selfloop flow, removed 31 redundant places. [2024-11-22 17:59:42,853 INFO L231 Difference]: Finished difference. Result has 292 places, 299 transitions, 869 flow [2024-11-22 17:59:42,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=292, PETRI_TRANSITIONS=299} [2024-11-22 17:59:42,854 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-11-22 17:59:42,855 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 299 transitions, 869 flow [2024-11-22 17:59:42,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:42,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:42,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:42,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:59:42,856 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:42,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:42,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1382227983, now seen corresponding path program 1 times [2024-11-22 17:59:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:42,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832031364] [2024-11-22 17:59:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:42,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:42,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:42,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832031364] [2024-11-22 17:59:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832031364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:42,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:42,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:59:42,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615745830] [2024-11-22 17:59:42,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:42,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:42,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:42,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:42,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:42,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-22 17:59:42,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 299 transitions, 869 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:42,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:42,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-22 17:59:42,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:43,165 INFO L124 PetriNetUnfolderBase]: 426/1665 cut-off events. [2024-11-22 17:59:43,165 INFO L125 PetriNetUnfolderBase]: For 3481/3508 co-relation queries the response was YES. [2024-11-22 17:59:43,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3884 conditions, 1665 events. 426/1665 cut-off events. For 3481/3508 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9866 event pairs, 92 based on Foata normal form. 0/1568 useless extension candidates. Maximal degree in co-relation 3840. Up to 429 conditions per place. [2024-11-22 17:59:43,181 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 36 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-11-22 17:59:43,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 305 transitions, 987 flow [2024-11-22 17:59:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-11-22 17:59:43,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-11-22 17:59:43,183 INFO L175 Difference]: Start difference. First operand has 292 places, 299 transitions, 869 flow. Second operand 3 states and 925 transitions. [2024-11-22 17:59:43,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 305 transitions, 987 flow [2024-11-22 17:59:43,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 305 transitions, 957 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:43,189 INFO L231 Difference]: Finished difference. Result has 293 places, 298 transitions, 847 flow [2024-11-22 17:59:43,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=847, PETRI_PLACES=293, PETRI_TRANSITIONS=298} [2024-11-22 17:59:43,190 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-11-22 17:59:43,190 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 298 transitions, 847 flow [2024-11-22 17:59:43,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:43,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:43,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:43,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:59:43,191 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:43,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:43,192 INFO L85 PathProgramCache]: Analyzing trace with hash -503447583, now seen corresponding path program 1 times [2024-11-22 17:59:43,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:43,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142740694] [2024-11-22 17:59:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:43,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:44,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:44,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142740694] [2024-11-22 17:59:44,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142740694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:44,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:44,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 17:59:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056564676] [2024-11-22 17:59:44,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:44,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 17:59:44,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 17:59:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:59:45,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-11-22 17:59:45,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 298 transitions, 847 flow. Second operand has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:45,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:45,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-11-22 17:59:45,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:46,704 INFO L124 PetriNetUnfolderBase]: 1557/5365 cut-off events. [2024-11-22 17:59:46,704 INFO L125 PetriNetUnfolderBase]: For 5978/6629 co-relation queries the response was YES. [2024-11-22 17:59:46,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11007 conditions, 5365 events. 1557/5365 cut-off events. For 5978/6629 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 44867 event pairs, 286 based on Foata normal form. 148/5032 useless extension candidates. Maximal degree in co-relation 10959. Up to 793 conditions per place. [2024-11-22 17:59:46,800 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 109 selfloop transitions, 58 changer transitions 4/388 dead transitions. [2024-11-22 17:59:46,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 388 transitions, 1728 flow [2024-11-22 17:59:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 17:59:46,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-22 17:59:46,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6556 transitions. [2024-11-22 17:59:46,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7623255813953488 [2024-11-22 17:59:46,809 INFO L175 Difference]: Start difference. First operand has 293 places, 298 transitions, 847 flow. Second operand 25 states and 6556 transitions. [2024-11-22 17:59:46,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 388 transitions, 1728 flow [2024-11-22 17:59:46,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 388 transitions, 1724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:59:46,818 INFO L231 Difference]: Finished difference. Result has 320 places, 326 transitions, 1258 flow [2024-11-22 17:59:46,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1258, PETRI_PLACES=320, PETRI_TRANSITIONS=326} [2024-11-22 17:59:46,819 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 5 predicate places. [2024-11-22 17:59:46,819 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 326 transitions, 1258 flow [2024-11-22 17:59:46,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:46,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:46,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:46,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 17:59:46,820 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:46,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:46,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1741826335, now seen corresponding path program 2 times [2024-11-22 17:59:46,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:46,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125758704] [2024-11-22 17:59:46,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:59:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:46,854 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:59:46,855 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:59:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 17:59:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:47,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125758704] [2024-11-22 17:59:47,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125758704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:47,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:47,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 17:59:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630807709] [2024-11-22 17:59:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:47,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 17:59:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:47,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 17:59:47,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:59:48,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-11-22 17:59:48,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 326 transitions, 1258 flow. Second operand has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:48,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:48,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-11-22 17:59:48,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:50,107 INFO L124 PetriNetUnfolderBase]: 2097/7562 cut-off events. [2024-11-22 17:59:50,108 INFO L125 PetriNetUnfolderBase]: For 12724/13632 co-relation queries the response was YES. [2024-11-22 17:59:50,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17387 conditions, 7562 events. 2097/7562 cut-off events. For 12724/13632 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 71815 event pairs, 353 based on Foata normal form. 220/7162 useless extension candidates. Maximal degree in co-relation 17334. Up to 1486 conditions per place. [2024-11-22 17:59:50,150 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 106 selfloop transitions, 81 changer transitions 0/404 dead transitions. [2024-11-22 17:59:50,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 404 transitions, 2221 flow [2024-11-22 17:59:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 17:59:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-22 17:59:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6552 transitions. [2024-11-22 17:59:50,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.761860465116279 [2024-11-22 17:59:50,156 INFO L175 Difference]: Start difference. First operand has 320 places, 326 transitions, 1258 flow. Second operand 25 states and 6552 transitions. [2024-11-22 17:59:50,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 404 transitions, 2221 flow [2024-11-22 17:59:50,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 404 transitions, 2176 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-22 17:59:50,173 INFO L231 Difference]: Finished difference. Result has 327 places, 360 transitions, 1786 flow [2024-11-22 17:59:50,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1786, PETRI_PLACES=327, PETRI_TRANSITIONS=360} [2024-11-22 17:59:50,174 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 12 predicate places. [2024-11-22 17:59:50,174 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 360 transitions, 1786 flow [2024-11-22 17:59:50,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:50,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:50,180 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:50,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 17:59:50,180 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:50,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash 961056649, now seen corresponding path program 1 times [2024-11-22 17:59:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896402575] [2024-11-22 17:59:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:50,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 17:59:50,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:50,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896402575] [2024-11-22 17:59:50,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896402575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:59:50,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716444819] [2024-11-22 17:59:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:50,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:59:50,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:59:50,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:59:50,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:59:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:50,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 17:59:50,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:59:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 17:59:50,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:59:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 17:59:51,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716444819] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:59:51,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:59:51,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-11-22 17:59:51,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135309809] [2024-11-22 17:59:51,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:59:51,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 17:59:51,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:51,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 17:59:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-22 17:59:52,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-11-22 17:59:52,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 360 transitions, 1786 flow. Second operand has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:52,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:52,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-11-22 17:59:52,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:54,746 INFO L124 PetriNetUnfolderBase]: 3766/13366 cut-off events. [2024-11-22 17:59:54,746 INFO L125 PetriNetUnfolderBase]: For 23916/27364 co-relation queries the response was YES. [2024-11-22 17:59:54,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32172 conditions, 13366 events. 3766/13366 cut-off events. For 23916/27364 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 135919 event pairs, 1289 based on Foata normal form. 345/12827 useless extension candidates. Maximal degree in co-relation 32115. Up to 3338 conditions per place. [2024-11-22 17:59:54,840 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 155 selfloop transitions, 95 changer transitions 0/504 dead transitions. [2024-11-22 17:59:54,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 504 transitions, 3119 flow [2024-11-22 17:59:54,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 17:59:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-22 17:59:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6226 transitions. [2024-11-22 17:59:54,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7869059656218402 [2024-11-22 17:59:54,846 INFO L175 Difference]: Start difference. First operand has 327 places, 360 transitions, 1786 flow. Second operand 23 states and 6226 transitions. [2024-11-22 17:59:54,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 504 transitions, 3119 flow [2024-11-22 17:59:54,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 504 transitions, 2996 flow, removed 36 selfloop flow, removed 18 redundant places. [2024-11-22 17:59:54,893 INFO L231 Difference]: Finished difference. Result has 344 places, 424 transitions, 2348 flow [2024-11-22 17:59:54,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1703, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2348, PETRI_PLACES=344, PETRI_TRANSITIONS=424} [2024-11-22 17:59:54,893 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 29 predicate places. [2024-11-22 17:59:54,894 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 424 transitions, 2348 flow [2024-11-22 17:59:54,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:54,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:54,896 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:54,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:59:55,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:59:55,098 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 17:59:55,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:55,098 INFO L85 PathProgramCache]: Analyzing trace with hash 960005105, now seen corresponding path program 1 times [2024-11-22 17:59:55,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:55,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408252188] [2024-11-22 17:59:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:55,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:55,313 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 17:59:55,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:55,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408252188] [2024-11-22 17:59:55,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408252188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:59:55,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791093547] [2024-11-22 17:59:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:55,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:59:55,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:59:55,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:59:55,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:59:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:55,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 17:59:55,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:59:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 17:59:55,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:59:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 17:59:56,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791093547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:59:56,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:59:56,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-11-22 17:59:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014609408] [2024-11-22 17:59:56,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:59:56,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 17:59:56,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:56,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 17:59:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-22 17:59:57,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-11-22 17:59:57,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 424 transitions, 2348 flow. Second operand has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:59:57,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:57,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-11-22 17:59:57,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:00,273 INFO L124 PetriNetUnfolderBase]: 2251/10591 cut-off events. [2024-11-22 18:00:00,273 INFO L125 PetriNetUnfolderBase]: For 24633/24939 co-relation queries the response was YES. [2024-11-22 18:00:00,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28669 conditions, 10591 events. 2251/10591 cut-off events. For 24633/24939 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 102395 event pairs, 656 based on Foata normal form. 109/10378 useless extension candidates. Maximal degree in co-relation 28596. Up to 1608 conditions per place. [2024-11-22 18:00:00,353 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 92 selfloop transitions, 44 changer transitions 146/531 dead transitions. [2024-11-22 18:00:00,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 531 transitions, 3690 flow [2024-11-22 18:00:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 18:00:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-22 18:00:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6238 transitions. [2024-11-22 18:00:00,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.788422649140546 [2024-11-22 18:00:00,360 INFO L175 Difference]: Start difference. First operand has 344 places, 424 transitions, 2348 flow. Second operand 23 states and 6238 transitions. [2024-11-22 18:00:00,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 531 transitions, 3690 flow [2024-11-22 18:00:00,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 531 transitions, 3652 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-22 18:00:00,464 INFO L231 Difference]: Finished difference. Result has 370 places, 372 transitions, 2027 flow [2024-11-22 18:00:00,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=2274, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2027, PETRI_PLACES=370, PETRI_TRANSITIONS=372} [2024-11-22 18:00:00,465 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 55 predicate places. [2024-11-22 18:00:00,465 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 372 transitions, 2027 flow [2024-11-22 18:00:00,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:00,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:00,468 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:00,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 18:00:00,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-22 18:00:00,670 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-22 18:00:00,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:00,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1544387834, now seen corresponding path program 2 times [2024-11-22 18:00:00,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:00,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927919549] [2024-11-22 18:00:00,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 18:00:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:00,762 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 18:00:00,762 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 18:00:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-22 18:00:03,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927919549] [2024-11-22 18:00:03,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927919549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:00:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479797330] [2024-11-22 18:00:03,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 18:00:03,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:03,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:00:03,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:00:03,677 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 18:00:03,678 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 18:00:03,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-22 18:00:03,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:00:03,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:00:04,317 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-22 18:00:04,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-22 18:00:05,060 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-22 18:00:05,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-22 18:00:05,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:00:06,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-22 18:00:06,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-22 18:00:06,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-22 18:00:06,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:00:06,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:00:06,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:00:06,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:00:06,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 31 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 138 [2024-11-22 18:00:06,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2024-11-22 18:00:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 18:00:06,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:00:37,057 INFO L349 Elim1Store]: treesize reduction 1170, result has 8.1 percent of original size [2024-11-22 18:00:37,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 165 [2024-11-22 18:00:37,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-11-22 18:00:37,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:00:37,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 141 [2024-11-22 18:00:37,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:00:37,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 17 [2024-11-22 18:00:37,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:00:37,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 323 [2024-11-22 18:00:37,238 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:00:37,279 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-11-22 18:00:37,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 1 [2024-11-22 18:00:37,282 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:00:37,326 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-11-22 18:00:37,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-11-22 18:00:37,329 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:00:37,370 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-11-22 18:00:37,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-11-22 18:00:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 4 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-22 18:00:48,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479797330] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:00:48,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:00:48,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 35, 18] total 78 [2024-11-22 18:00:48,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395802567] [2024-11-22 18:00:48,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:00:48,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-11-22 18:00:48,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:48,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-11-22 18:00:48,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=5755, Unknown=45, NotChecked=0, Total=6162 [2024-11-22 18:00:52,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-22 18:00:57,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]