./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-min.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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:15:19,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:15:19,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:15:19,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:15:19,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:15:19,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:15:19,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:15:19,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:15:19,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:15:19,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:15:19,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:15:19,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:15:19,187 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:15:19,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:15:19,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:15:19,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:15:19,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:15:19,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:15:19,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:15:19,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:15:19,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:15:19,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:15:19,192 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:15:19,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:15:19,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:15:19,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:15:19,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:15:19,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:15:19,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:15:19,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:15:19,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:15:19,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:15:19,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:15:19,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:15:19,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:15:19,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:15:19,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:15:19,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:15:19,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:15:19,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:15:19,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:15:19,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2024-10-14 17:15:19,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:15:19,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:15:19,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:15:19,485 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:15:19,485 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:15:19,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-10-14 17:15:20,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:15:21,150 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:15:21,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-10-14 17:15:21,159 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52686bdde/7666351876ae4ca7bb38ca80d697f1d1/FLAG32395d345 [2024-10-14 17:15:21,537 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52686bdde/7666351876ae4ca7bb38ca80d697f1d1 [2024-10-14 17:15:21,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:15:21,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:15:21,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:15:21,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:15:21,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:15:21,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25690618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21, skipping insertion in model container [2024-10-14 17:15:21,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:15:21,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:15:21,804 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:15:21,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:15:21,851 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:15:21,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21 WrapperNode [2024-10-14 17:15:21,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:15:21,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:15:21,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:15:21,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:15:21,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,912 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 348 [2024-10-14 17:15:21,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:15:21,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:15:21,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:15:21,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:15:21,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:15:21,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:15:21,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:15:21,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:15:21,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:15:22,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:15:22,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:15:22,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:15:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:15:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 17:15:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 17:15:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 17:15:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 17:15:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 17:15:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 17:15:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:15:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:15:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 17:15:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 17:15:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:15:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:15:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:15:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:15:22,082 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:15:22,223 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:15:22,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:15:22,973 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:15:22,973 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:15:23,273 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:15:23,275 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-14 17:15:23,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:15:23 BoogieIcfgContainer [2024-10-14 17:15:23,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:15:23,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:15:23,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:15:23,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:15:23,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:15:21" (1/3) ... [2024-10-14 17:15:23,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b24bcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:15:23, skipping insertion in model container [2024-10-14 17:15:23,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (2/3) ... [2024-10-14 17:15:23,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b24bcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:15:23, skipping insertion in model container [2024-10-14 17:15:23,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:15:23" (3/3) ... [2024-10-14 17:15:23,286 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2024-10-14 17:15:23,300 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:15:23,300 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-10-14 17:15:23,300 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:15:23,410 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 17:15:23,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 493 places, 510 transitions, 1041 flow [2024-10-14 17:15:23,613 INFO L124 PetriNetUnfolderBase]: 27/507 cut-off events. [2024-10-14 17:15:23,613 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 17:15:23,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 507 events. 27/507 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 632 event pairs, 0 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 428. Up to 2 conditions per place. [2024-10-14 17:15:23,622 INFO L82 GeneralOperation]: Start removeDead. Operand has 493 places, 510 transitions, 1041 flow [2024-10-14 17:15:23,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 449 places, 463 transitions, 944 flow [2024-10-14 17:15:23,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:15:23,656 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;@3b7fe7fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:15:23,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-10-14 17:15:23,660 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:15:23,660 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-14 17:15:23,660 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:15:23,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:23,661 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:23,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:23,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash 64313588, now seen corresponding path program 1 times [2024-10-14 17:15:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:23,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082880037] [2024-10-14 17:15:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:23,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:23,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:23,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082880037] [2024-10-14 17:15:23,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082880037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:23,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:23,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:23,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448518682] [2024-10-14 17:15:23,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:23,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:23,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 510 [2024-10-14 17:15:24,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 463 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:24,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 510 [2024-10-14 17:15:24,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,341 INFO L124 PetriNetUnfolderBase]: 101/1214 cut-off events. [2024-10-14 17:15:24,342 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-14 17:15:24,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 1214 events. 101/1214 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6484 event pairs, 51 based on Foata normal form. 12/1018 useless extension candidates. Maximal degree in co-relation 955. Up to 135 conditions per place. [2024-10-14 17:15:24,357 INFO L140 encePairwiseOnDemand]: 478/510 looper letters, 19 selfloop transitions, 2 changer transitions 9/433 dead transitions. [2024-10-14 17:15:24,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 433 transitions, 926 flow [2024-10-14 17:15:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1413 transitions. [2024-10-14 17:15:24,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235294117647059 [2024-10-14 17:15:24,384 INFO L175 Difference]: Start difference. First operand has 449 places, 463 transitions, 944 flow. Second operand 3 states and 1413 transitions. [2024-10-14 17:15:24,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 433 transitions, 926 flow [2024-10-14 17:15:24,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 433 transitions, 914 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 17:15:24,402 INFO L231 Difference]: Finished difference. Result has 430 places, 424 transitions, 858 flow [2024-10-14 17:15:24,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=430, PETRI_TRANSITIONS=424} [2024-10-14 17:15:24,409 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -19 predicate places. [2024-10-14 17:15:24,412 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 424 transitions, 858 flow [2024-10-14 17:15:24,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:24,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,414 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] [2024-10-14 17:15:24,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:15:24,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:24,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,415 INFO L85 PathProgramCache]: Analyzing trace with hash -123107398, now seen corresponding path program 1 times [2024-10-14 17:15:24,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970567017] [2024-10-14 17:15:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970567017] [2024-10-14 17:15:24,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970567017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895849810] [2024-10-14 17:15:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:24,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 510 [2024-10-14 17:15:24,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 424 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:24,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 510 [2024-10-14 17:15:24,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,769 INFO L124 PetriNetUnfolderBase]: 223/1237 cut-off events. [2024-10-14 17:15:24,769 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-14 17:15:24,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1237 events. 223/1237 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6518 event pairs, 128 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1525. Up to 299 conditions per place. [2024-10-14 17:15:24,780 INFO L140 encePairwiseOnDemand]: 502/510 looper letters, 23 selfloop transitions, 1 changer transitions 0/417 dead transitions. [2024-10-14 17:15:24,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 417 transitions, 892 flow [2024-10-14 17:15:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1369 transitions. [2024-10-14 17:15:24,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8947712418300654 [2024-10-14 17:15:24,785 INFO L175 Difference]: Start difference. First operand has 430 places, 424 transitions, 858 flow. Second operand 3 states and 1369 transitions. [2024-10-14 17:15:24,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 417 transitions, 892 flow [2024-10-14 17:15:24,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 417 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:24,792 INFO L231 Difference]: Finished difference. Result has 414 places, 417 transitions, 842 flow [2024-10-14 17:15:24,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=414, PETRI_TRANSITIONS=417} [2024-10-14 17:15:24,794 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -35 predicate places. [2024-10-14 17:15:24,794 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 417 transitions, 842 flow [2024-10-14 17:15:24,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:24,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,796 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] [2024-10-14 17:15:24,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:15:24,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:24,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash 573243807, now seen corresponding path program 1 times [2024-10-14 17:15:24,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842344886] [2024-10-14 17:15:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:25,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:25,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842344886] [2024-10-14 17:15:25,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842344886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:25,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:25,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:25,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885102955] [2024-10-14 17:15:25,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:25,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:25,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:25,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:25,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:25,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 510 [2024-10-14 17:15:25,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 417 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:25,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:25,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 510 [2024-10-14 17:15:25,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:26,205 INFO L124 PetriNetUnfolderBase]: 236/1331 cut-off events. [2024-10-14 17:15:26,205 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-14 17:15:26,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1807 conditions, 1331 events. 236/1331 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7716 event pairs, 188 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1775. Up to 406 conditions per place. [2024-10-14 17:15:26,215 INFO L140 encePairwiseOnDemand]: 492/510 looper letters, 65 selfloop transitions, 15 changer transitions 0/414 dead transitions. [2024-10-14 17:15:26,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 414 transitions, 996 flow [2024-10-14 17:15:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:26,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2447 transitions. [2024-10-14 17:15:26,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7996732026143791 [2024-10-14 17:15:26,221 INFO L175 Difference]: Start difference. First operand has 414 places, 417 transitions, 842 flow. Second operand 6 states and 2447 transitions. [2024-10-14 17:15:26,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 414 transitions, 996 flow [2024-10-14 17:15:26,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 414 transitions, 995 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:26,228 INFO L231 Difference]: Finished difference. Result has 415 places, 414 transitions, 865 flow [2024-10-14 17:15:26,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=865, PETRI_PLACES=415, PETRI_TRANSITIONS=414} [2024-10-14 17:15:26,230 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -34 predicate places. [2024-10-14 17:15:26,230 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 414 transitions, 865 flow [2024-10-14 17:15:26,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:26,232 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] [2024-10-14 17:15:26,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:15:26,232 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:26,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:26,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1149357642, now seen corresponding path program 1 times [2024-10-14 17:15:26,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:26,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081305153] [2024-10-14 17:15:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:26,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:26,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:26,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081305153] [2024-10-14 17:15:26,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081305153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:26,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188449712] [2024-10-14 17:15:26,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:26,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:26,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 510 [2024-10-14 17:15:26,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 414 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:26,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 510 [2024-10-14 17:15:26,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:26,419 INFO L124 PetriNetUnfolderBase]: 55/587 cut-off events. [2024-10-14 17:15:26,419 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:15:26,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 587 events. 55/587 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1808 event pairs, 34 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 661. Up to 77 conditions per place. [2024-10-14 17:15:26,424 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2024-10-14 17:15:26,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 413 transitions, 899 flow [2024-10-14 17:15:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1390 transitions. [2024-10-14 17:15:26,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084967320261438 [2024-10-14 17:15:26,428 INFO L175 Difference]: Start difference. First operand has 415 places, 414 transitions, 865 flow. Second operand 3 states and 1390 transitions. [2024-10-14 17:15:26,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 413 transitions, 899 flow [2024-10-14 17:15:26,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 413 transitions, 869 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:15:26,473 INFO L231 Difference]: Finished difference. Result has 411 places, 413 transitions, 837 flow [2024-10-14 17:15:26,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=837, PETRI_PLACES=411, PETRI_TRANSITIONS=413} [2024-10-14 17:15:26,476 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -38 predicate places. [2024-10-14 17:15:26,477 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 413 transitions, 837 flow [2024-10-14 17:15:26,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:26,478 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] [2024-10-14 17:15:26,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:15:26,479 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:26,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1852644211, now seen corresponding path program 1 times [2024-10-14 17:15:26,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:26,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054090755] [2024-10-14 17:15:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:26,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:26,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:26,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:26,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054090755] [2024-10-14 17:15:26,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054090755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:26,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:26,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:26,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66239342] [2024-10-14 17:15:26,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:26,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:26,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:26,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:26,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:26,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 510 [2024-10-14 17:15:26,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 413 transitions, 837 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:26,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 510 [2024-10-14 17:15:26,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:26,671 INFO L124 PetriNetUnfolderBase]: 55/586 cut-off events. [2024-10-14 17:15:26,671 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:15:26,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 586 events. 55/586 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1712 event pairs, 34 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 647. Up to 77 conditions per place. [2024-10-14 17:15:26,675 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2024-10-14 17:15:26,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 412 transitions, 871 flow [2024-10-14 17:15:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1390 transitions. [2024-10-14 17:15:26,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084967320261438 [2024-10-14 17:15:26,679 INFO L175 Difference]: Start difference. First operand has 411 places, 413 transitions, 837 flow. Second operand 3 states and 1390 transitions. [2024-10-14 17:15:26,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 412 transitions, 871 flow [2024-10-14 17:15:26,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 412 transitions, 867 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:26,686 INFO L231 Difference]: Finished difference. Result has 410 places, 412 transitions, 835 flow [2024-10-14 17:15:26,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=410, PETRI_TRANSITIONS=412} [2024-10-14 17:15:26,690 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -39 predicate places. [2024-10-14 17:15:26,690 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 412 transitions, 835 flow [2024-10-14 17:15:26,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:26,692 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] [2024-10-14 17:15:26,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:15:26,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:26,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:26,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1332480732, now seen corresponding path program 1 times [2024-10-14 17:15:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:26,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934863659] [2024-10-14 17:15:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:26,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:26,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:26,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934863659] [2024-10-14 17:15:26,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934863659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:26,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:26,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:26,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429931032] [2024-10-14 17:15:26,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:26,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:26,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:26,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:26,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:26,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 510 [2024-10-14 17:15:26,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 412 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:26,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 510 [2024-10-14 17:15:26,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:26,889 INFO L124 PetriNetUnfolderBase]: 23/449 cut-off events. [2024-10-14 17:15:26,889 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:15:26,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 449 events. 23/449 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 757 event pairs, 12 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 462. Up to 35 conditions per place. [2024-10-14 17:15:26,892 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 12 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2024-10-14 17:15:26,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 411 transitions, 861 flow [2024-10-14 17:15:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2024-10-14 17:15:26,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9137254901960784 [2024-10-14 17:15:26,895 INFO L175 Difference]: Start difference. First operand has 410 places, 412 transitions, 835 flow. Second operand 3 states and 1398 transitions. [2024-10-14 17:15:26,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 411 transitions, 861 flow [2024-10-14 17:15:26,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 411 transitions, 857 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:26,903 INFO L231 Difference]: Finished difference. Result has 409 places, 411 transitions, 833 flow [2024-10-14 17:15:26,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=409, PETRI_TRANSITIONS=411} [2024-10-14 17:15:26,904 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -40 predicate places. [2024-10-14 17:15:26,904 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 411 transitions, 833 flow [2024-10-14 17:15:26,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:26,906 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] [2024-10-14 17:15:26,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:15:26,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:26,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:26,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1889059969, now seen corresponding path program 1 times [2024-10-14 17:15:26,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:26,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972633419] [2024-10-14 17:15:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:26,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:26,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:26,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:26,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972633419] [2024-10-14 17:15:26,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972633419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:26,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:26,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:26,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850047956] [2024-10-14 17:15:26,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:26,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:26,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:26,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:26,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:26,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 510 [2024-10-14 17:15:26,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 411 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:26,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:26,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 510 [2024-10-14 17:15:26,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:27,069 INFO L124 PetriNetUnfolderBase]: 23/448 cut-off events. [2024-10-14 17:15:27,069 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:15:27,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 448 events. 23/448 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 759 event pairs, 12 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 461. Up to 35 conditions per place. [2024-10-14 17:15:27,072 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 12 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2024-10-14 17:15:27,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 410 transitions, 859 flow [2024-10-14 17:15:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:27,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2024-10-14 17:15:27,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9137254901960784 [2024-10-14 17:15:27,076 INFO L175 Difference]: Start difference. First operand has 409 places, 411 transitions, 833 flow. Second operand 3 states and 1398 transitions. [2024-10-14 17:15:27,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 410 transitions, 859 flow [2024-10-14 17:15:27,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 410 transitions, 855 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:27,082 INFO L231 Difference]: Finished difference. Result has 408 places, 410 transitions, 831 flow [2024-10-14 17:15:27,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=408, PETRI_TRANSITIONS=410} [2024-10-14 17:15:27,083 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -41 predicate places. [2024-10-14 17:15:27,084 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 410 transitions, 831 flow [2024-10-14 17:15:27,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:27,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:27,085 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] [2024-10-14 17:15:27,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:15:27,085 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:27,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash 30063585, now seen corresponding path program 1 times [2024-10-14 17:15:27,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:27,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518002044] [2024-10-14 17:15:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:27,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518002044] [2024-10-14 17:15:27,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518002044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:27,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:27,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:27,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249105632] [2024-10-14 17:15:27,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:27,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:27,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:27,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:27,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 510 [2024-10-14 17:15:27,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 410 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:27,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:27,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 510 [2024-10-14 17:15:27,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:27,319 INFO L124 PetriNetUnfolderBase]: 109/1164 cut-off events. [2024-10-14 17:15:27,319 INFO L125 PetriNetUnfolderBase]: For 15/16 co-relation queries the response was YES. [2024-10-14 17:15:27,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1164 events. 109/1164 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5661 event pairs, 56 based on Foata normal form. 0/1012 useless extension candidates. Maximal degree in co-relation 1290. Up to 135 conditions per place. [2024-10-14 17:15:27,328 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 17 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2024-10-14 17:15:27,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 406 transitions, 859 flow [2024-10-14 17:15:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2024-10-14 17:15:27,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065359477124183 [2024-10-14 17:15:27,331 INFO L175 Difference]: Start difference. First operand has 408 places, 410 transitions, 831 flow. Second operand 3 states and 1387 transitions. [2024-10-14 17:15:27,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 406 transitions, 859 flow [2024-10-14 17:15:27,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 406 transitions, 855 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:27,338 INFO L231 Difference]: Finished difference. Result has 404 places, 406 transitions, 821 flow [2024-10-14 17:15:27,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=404, PETRI_TRANSITIONS=406} [2024-10-14 17:15:27,339 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -45 predicate places. [2024-10-14 17:15:27,339 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 406 transitions, 821 flow [2024-10-14 17:15:27,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:27,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:27,342 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] [2024-10-14 17:15:27,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:15:27,345 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:27,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:27,345 INFO L85 PathProgramCache]: Analyzing trace with hash 360475418, now seen corresponding path program 1 times [2024-10-14 17:15:27,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:27,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090573201] [2024-10-14 17:15:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:27,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:27,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090573201] [2024-10-14 17:15:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090573201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:27,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:27,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:27,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865042934] [2024-10-14 17:15:27,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:27,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:28,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 510 [2024-10-14 17:15:28,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 406 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:28,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:28,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 510 [2024-10-14 17:15:28,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:28,525 INFO L124 PetriNetUnfolderBase]: 29/514 cut-off events. [2024-10-14 17:15:28,525 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-14 17:15:28,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 514 events. 29/514 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1132 event pairs, 4 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 558. Up to 43 conditions per place. [2024-10-14 17:15:28,530 INFO L140 encePairwiseOnDemand]: 503/510 looper letters, 35 selfloop transitions, 5 changer transitions 0/411 dead transitions. [2024-10-14 17:15:28,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 411 transitions, 915 flow [2024-10-14 17:15:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2694 transitions. [2024-10-14 17:15:28,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8803921568627451 [2024-10-14 17:15:28,536 INFO L175 Difference]: Start difference. First operand has 404 places, 406 transitions, 821 flow. Second operand 6 states and 2694 transitions. [2024-10-14 17:15:28,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 411 transitions, 915 flow [2024-10-14 17:15:28,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 411 transitions, 914 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:28,546 INFO L231 Difference]: Finished difference. Result has 407 places, 405 transitions, 832 flow [2024-10-14 17:15:28,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=407, PETRI_TRANSITIONS=405} [2024-10-14 17:15:28,547 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -42 predicate places. [2024-10-14 17:15:28,548 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 405 transitions, 832 flow [2024-10-14 17:15:28,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:28,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:28,550 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] [2024-10-14 17:15:28,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:15:28,550 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:28,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash -555120169, now seen corresponding path program 1 times [2024-10-14 17:15:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117191933] [2024-10-14 17:15:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:28,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:28,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117191933] [2024-10-14 17:15:28,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117191933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:28,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:28,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672205685] [2024-10-14 17:15:28,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:28,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:28,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:28,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:28,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:28,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 510 [2024-10-14 17:15:28,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 405 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:28,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:28,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 510 [2024-10-14 17:15:28,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:28,753 INFO L124 PetriNetUnfolderBase]: 69/627 cut-off events. [2024-10-14 17:15:28,754 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-14 17:15:28,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 627 events. 69/627 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1973 event pairs, 36 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 757. Up to 98 conditions per place. [2024-10-14 17:15:28,758 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/404 dead transitions. [2024-10-14 17:15:28,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 404 transitions, 866 flow [2024-10-14 17:15:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2024-10-14 17:15:28,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098039215686274 [2024-10-14 17:15:28,761 INFO L175 Difference]: Start difference. First operand has 407 places, 405 transitions, 832 flow. Second operand 3 states and 1392 transitions. [2024-10-14 17:15:28,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 404 transitions, 866 flow [2024-10-14 17:15:28,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 404 transitions, 858 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 17:15:28,768 INFO L231 Difference]: Finished difference. Result has 404 places, 404 transitions, 826 flow [2024-10-14 17:15:28,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=404, PETRI_TRANSITIONS=404} [2024-10-14 17:15:28,771 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -45 predicate places. [2024-10-14 17:15:28,771 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 404 transitions, 826 flow [2024-10-14 17:15:28,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:28,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:28,773 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] [2024-10-14 17:15:28,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:15:28,773 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:28,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash -620784319, now seen corresponding path program 1 times [2024-10-14 17:15:28,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:28,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045167798] [2024-10-14 17:15:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:28,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:28,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:28,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045167798] [2024-10-14 17:15:28,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045167798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:28,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:28,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901273984] [2024-10-14 17:15:28,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:28,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:28,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:28,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:28,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:28,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 510 [2024-10-14 17:15:28,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 404 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:28,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:28,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 510 [2024-10-14 17:15:28,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:29,023 INFO L124 PetriNetUnfolderBase]: 125/1187 cut-off events. [2024-10-14 17:15:29,023 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-14 17:15:29,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1417 conditions, 1187 events. 125/1187 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5853 event pairs, 58 based on Foata normal form. 0/1053 useless extension candidates. Maximal degree in co-relation 1384. Up to 158 conditions per place. [2024-10-14 17:15:29,032 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 18 selfloop transitions, 1 changer transitions 0/400 dead transitions. [2024-10-14 17:15:29,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 400 transitions, 856 flow [2024-10-14 17:15:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2024-10-14 17:15:29,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065359477124183 [2024-10-14 17:15:29,036 INFO L175 Difference]: Start difference. First operand has 404 places, 404 transitions, 826 flow. Second operand 3 states and 1387 transitions. [2024-10-14 17:15:29,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 400 transitions, 856 flow [2024-10-14 17:15:29,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 400 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:29,043 INFO L231 Difference]: Finished difference. Result has 400 places, 400 transitions, 816 flow [2024-10-14 17:15:29,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=400, PETRI_TRANSITIONS=400} [2024-10-14 17:15:29,045 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -49 predicate places. [2024-10-14 17:15:29,045 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 400 transitions, 816 flow [2024-10-14 17:15:29,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:29,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:29,046 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] [2024-10-14 17:15:29,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:15:29,047 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:29,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1135693127, now seen corresponding path program 1 times [2024-10-14 17:15:29,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:29,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973092016] [2024-10-14 17:15:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:29,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:29,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:29,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973092016] [2024-10-14 17:15:29,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973092016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:29,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:29,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:29,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550538017] [2024-10-14 17:15:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:29,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:29,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:29,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:29,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 510 [2024-10-14 17:15:29,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 400 transitions, 816 flow. Second operand has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:29,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:29,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 510 [2024-10-14 17:15:29,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:30,138 INFO L124 PetriNetUnfolderBase]: 29/507 cut-off events. [2024-10-14 17:15:30,138 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-14 17:15:30,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 507 events. 29/507 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1107 event pairs, 4 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 567. Up to 43 conditions per place. [2024-10-14 17:15:30,142 INFO L140 encePairwiseOnDemand]: 503/510 looper letters, 35 selfloop transitions, 5 changer transitions 0/404 dead transitions. [2024-10-14 17:15:30,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 404 transitions, 908 flow [2024-10-14 17:15:30,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2694 transitions. [2024-10-14 17:15:30,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8803921568627451 [2024-10-14 17:15:30,148 INFO L175 Difference]: Start difference. First operand has 400 places, 400 transitions, 816 flow. Second operand 6 states and 2694 transitions. [2024-10-14 17:15:30,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 404 transitions, 908 flow [2024-10-14 17:15:30,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 404 transitions, 907 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:30,155 INFO L231 Difference]: Finished difference. Result has 402 places, 398 transitions, 821 flow [2024-10-14 17:15:30,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=402, PETRI_TRANSITIONS=398} [2024-10-14 17:15:30,156 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -47 predicate places. [2024-10-14 17:15:30,157 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 398 transitions, 821 flow [2024-10-14 17:15:30,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:30,159 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] [2024-10-14 17:15:30,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:15:30,159 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:30,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:30,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1178971585, now seen corresponding path program 1 times [2024-10-14 17:15:30,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:30,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620893339] [2024-10-14 17:15:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:30,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:30,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:30,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620893339] [2024-10-14 17:15:30,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620893339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:30,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:30,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:30,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222017521] [2024-10-14 17:15:30,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:30,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:30,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:30,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 510 [2024-10-14 17:15:30,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 398 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:30,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 510 [2024-10-14 17:15:30,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:30,338 INFO L124 PetriNetUnfolderBase]: 69/620 cut-off events. [2024-10-14 17:15:30,339 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-14 17:15:30,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 620 events. 69/620 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1912 event pairs, 36 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 752. Up to 98 conditions per place. [2024-10-14 17:15:30,344 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/397 dead transitions. [2024-10-14 17:15:30,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 397 transitions, 855 flow [2024-10-14 17:15:30,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2024-10-14 17:15:30,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098039215686274 [2024-10-14 17:15:30,347 INFO L175 Difference]: Start difference. First operand has 402 places, 398 transitions, 821 flow. Second operand 3 states and 1392 transitions. [2024-10-14 17:15:30,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 397 transitions, 855 flow [2024-10-14 17:15:30,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 397 transitions, 845 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:15:30,353 INFO L231 Difference]: Finished difference. Result has 398 places, 397 transitions, 813 flow [2024-10-14 17:15:30,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=813, PETRI_PLACES=398, PETRI_TRANSITIONS=397} [2024-10-14 17:15:30,355 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -51 predicate places. [2024-10-14 17:15:30,355 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 397 transitions, 813 flow [2024-10-14 17:15:30,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:30,356 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] [2024-10-14 17:15:30,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:15:30,356 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:30,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:30,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1081886323, now seen corresponding path program 1 times [2024-10-14 17:15:30,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:30,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163508593] [2024-10-14 17:15:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:30,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:30,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163508593] [2024-10-14 17:15:30,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163508593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:30,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:30,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:30,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728337864] [2024-10-14 17:15:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:30,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:30,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:30,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:30,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:30,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-14 17:15:30,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 397 transitions, 813 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:30,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-14 17:15:30,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:30,555 INFO L124 PetriNetUnfolderBase]: 31/461 cut-off events. [2024-10-14 17:15:30,556 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-14 17:15:30,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 461 events. 31/461 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 843 event pairs, 14 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 506. Up to 50 conditions per place. [2024-10-14 17:15:30,559 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 14 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2024-10-14 17:15:30,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 396 transitions, 843 flow [2024-10-14 17:15:30,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1396 transitions. [2024-10-14 17:15:30,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9124183006535947 [2024-10-14 17:15:30,563 INFO L175 Difference]: Start difference. First operand has 398 places, 397 transitions, 813 flow. Second operand 3 states and 1396 transitions. [2024-10-14 17:15:30,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 396 transitions, 843 flow [2024-10-14 17:15:30,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 396 transitions, 839 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:30,571 INFO L231 Difference]: Finished difference. Result has 397 places, 396 transitions, 811 flow [2024-10-14 17:15:30,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=397, PETRI_TRANSITIONS=396} [2024-10-14 17:15:30,572 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -52 predicate places. [2024-10-14 17:15:30,573 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 396 transitions, 811 flow [2024-10-14 17:15:30,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:30,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:30,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:15:30,575 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:30,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:30,575 INFO L85 PathProgramCache]: Analyzing trace with hash 688744348, now seen corresponding path program 1 times [2024-10-14 17:15:30,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:30,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002317756] [2024-10-14 17:15:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:30,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:30,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:30,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002317756] [2024-10-14 17:15:30,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002317756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:30,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:30,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381919679] [2024-10-14 17:15:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:30,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:30,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:30,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-14 17:15:30,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 396 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:30,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-14 17:15:30,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:30,896 INFO L124 PetriNetUnfolderBase]: 113/1198 cut-off events. [2024-10-14 17:15:30,896 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-14 17:15:30,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 1198 events. 113/1198 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6615 event pairs, 25 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1392. Up to 91 conditions per place. [2024-10-14 17:15:30,907 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 24 selfloop transitions, 3 changer transitions 0/405 dead transitions. [2024-10-14 17:15:30,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 405 transitions, 892 flow [2024-10-14 17:15:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1407 transitions. [2024-10-14 17:15:30,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9196078431372549 [2024-10-14 17:15:30,911 INFO L175 Difference]: Start difference. First operand has 397 places, 396 transitions, 811 flow. Second operand 3 states and 1407 transitions. [2024-10-14 17:15:30,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 405 transitions, 892 flow [2024-10-14 17:15:30,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 405 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:30,918 INFO L231 Difference]: Finished difference. Result has 396 places, 396 transitions, 820 flow [2024-10-14 17:15:30,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=396, PETRI_TRANSITIONS=396} [2024-10-14 17:15:30,920 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -53 predicate places. [2024-10-14 17:15:30,920 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 396 transitions, 820 flow [2024-10-14 17:15:30,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:30,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:30,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:30,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:15:30,921 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:30,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1410606142, now seen corresponding path program 1 times [2024-10-14 17:15:30,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:30,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281554924] [2024-10-14 17:15:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:31,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:31,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281554924] [2024-10-14 17:15:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281554924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:31,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:31,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:15:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783436750] [2024-10-14 17:15:31,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:31,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:15:31,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:31,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:15:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:15:31,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 510 [2024-10-14 17:15:31,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 396 transitions, 820 flow. Second operand has 7 states, 7 states have (on average 439.14285714285717) internal successors, (3074), 7 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:31,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:31,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 510 [2024-10-14 17:15:31,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:32,071 INFO L124 PetriNetUnfolderBase]: 256/1901 cut-off events. [2024-10-14 17:15:32,072 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-10-14 17:15:32,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1901 events. 256/1901 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9860 event pairs, 122 based on Foata normal form. 9/1758 useless extension candidates. Maximal degree in co-relation 2446. Up to 245 conditions per place. [2024-10-14 17:15:32,088 INFO L140 encePairwiseOnDemand]: 481/510 looper letters, 52 selfloop transitions, 42 changer transitions 0/447 dead transitions. [2024-10-14 17:15:32,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 447 transitions, 1126 flow [2024-10-14 17:15:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:15:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:15:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4442 transitions. [2024-10-14 17:15:32,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8709803921568627 [2024-10-14 17:15:32,096 INFO L175 Difference]: Start difference. First operand has 396 places, 396 transitions, 820 flow. Second operand 10 states and 4442 transitions. [2024-10-14 17:15:32,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 447 transitions, 1126 flow [2024-10-14 17:15:32,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 447 transitions, 1123 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:32,141 INFO L231 Difference]: Finished difference. Result has 408 places, 421 transitions, 1009 flow [2024-10-14 17:15:32,142 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1009, PETRI_PLACES=408, PETRI_TRANSITIONS=421} [2024-10-14 17:15:32,142 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -41 predicate places. [2024-10-14 17:15:32,142 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 421 transitions, 1009 flow [2024-10-14 17:15:32,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 439.14285714285717) internal successors, (3074), 7 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:32,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:32,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:32,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:15:32,144 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:32,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:32,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1577782458, now seen corresponding path program 1 times [2024-10-14 17:15:32,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:32,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542224795] [2024-10-14 17:15:32,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:32,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542224795] [2024-10-14 17:15:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542224795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279472289] [2024-10-14 17:15:32,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:32,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:32,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:32,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:32,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 510 [2024-10-14 17:15:32,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 421 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:32,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:32,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 510 [2024-10-14 17:15:32,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:32,420 INFO L124 PetriNetUnfolderBase]: 87/956 cut-off events. [2024-10-14 17:15:32,421 INFO L125 PetriNetUnfolderBase]: For 68/80 co-relation queries the response was YES. [2024-10-14 17:15:32,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 956 events. 87/956 cut-off events. For 68/80 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2739 event pairs, 39 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 1202. Up to 125 conditions per place. [2024-10-14 17:15:32,430 INFO L140 encePairwiseOnDemand]: 508/510 looper letters, 12 selfloop transitions, 1 changer transitions 0/420 dead transitions. [2024-10-14 17:15:32,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 420 transitions, 1033 flow [2024-10-14 17:15:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:32,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1405 transitions. [2024-10-14 17:15:32,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9183006535947712 [2024-10-14 17:15:32,433 INFO L175 Difference]: Start difference. First operand has 408 places, 421 transitions, 1009 flow. Second operand 3 states and 1405 transitions. [2024-10-14 17:15:32,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 420 transitions, 1033 flow [2024-10-14 17:15:32,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 420 transitions, 1033 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:32,444 INFO L231 Difference]: Finished difference. Result has 409 places, 420 transitions, 1009 flow [2024-10-14 17:15:32,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1007, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1009, PETRI_PLACES=409, PETRI_TRANSITIONS=420} [2024-10-14 17:15:32,445 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -40 predicate places. [2024-10-14 17:15:32,445 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 420 transitions, 1009 flow [2024-10-14 17:15:32,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:32,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:32,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:32,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:15:32,447 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:32,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:32,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1541076308, now seen corresponding path program 1 times [2024-10-14 17:15:32,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:32,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628586798] [2024-10-14 17:15:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:32,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:32,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:32,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628586798] [2024-10-14 17:15:32,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628586798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:32,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:32,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:32,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696255328] [2024-10-14 17:15:32,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:32,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:32,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:32,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-14 17:15:32,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 420 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:32,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:32,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-14 17:15:32,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:32,955 INFO L124 PetriNetUnfolderBase]: 238/2127 cut-off events. [2024-10-14 17:15:32,955 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-10-14 17:15:32,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2779 conditions, 2127 events. 238/2127 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12968 event pairs, 61 based on Foata normal form. 4/1994 useless extension candidates. Maximal degree in co-relation 2737. Up to 176 conditions per place. [2024-10-14 17:15:32,978 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 20 selfloop transitions, 2 changer transitions 31/429 dead transitions. [2024-10-14 17:15:32,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 429 transitions, 1088 flow [2024-10-14 17:15:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2024-10-14 17:15:32,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.918954248366013 [2024-10-14 17:15:32,981 INFO L175 Difference]: Start difference. First operand has 409 places, 420 transitions, 1009 flow. Second operand 3 states and 1406 transitions. [2024-10-14 17:15:32,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 429 transitions, 1088 flow [2024-10-14 17:15:32,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 429 transitions, 1087 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:32,989 INFO L231 Difference]: Finished difference. Result has 409 places, 390 transitions, 884 flow [2024-10-14 17:15:32,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=409, PETRI_TRANSITIONS=390} [2024-10-14 17:15:32,990 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -40 predicate places. [2024-10-14 17:15:32,990 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 390 transitions, 884 flow [2024-10-14 17:15:32,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:32,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:32,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:32,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:15:32,992 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:32,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1969656587, now seen corresponding path program 1 times [2024-10-14 17:15:32,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:32,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356880401] [2024-10-14 17:15:32,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:32,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:33,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:33,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356880401] [2024-10-14 17:15:33,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356880401] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:15:33,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390398625] [2024-10-14 17:15:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:33,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:15:33,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:15:33,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:15:33,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:15:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:33,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:15:33,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:15:34,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:34,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:15:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:34,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390398625] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:15:34,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:15:34,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-10-14 17:15:34,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127049815] [2024-10-14 17:15:34,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:15:34,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 17:15:34,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:34,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 17:15:34,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-10-14 17:15:35,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 510 [2024-10-14 17:15:35,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 390 transitions, 884 flow. Second operand has 19 states, 19 states have (on average 428.1578947368421) internal successors, (8135), 19 states have internal predecessors, (8135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:35,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:35,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 510 [2024-10-14 17:15:35,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:36,670 INFO L124 PetriNetUnfolderBase]: 491/2909 cut-off events. [2024-10-14 17:15:36,670 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2024-10-14 17:15:36,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4208 conditions, 2909 events. 491/2909 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18077 event pairs, 201 based on Foata normal form. 9/2686 useless extension candidates. Maximal degree in co-relation 4164. Up to 437 conditions per place. [2024-10-14 17:15:36,690 INFO L140 encePairwiseOnDemand]: 471/510 looper letters, 34 selfloop transitions, 36 changer transitions 77/480 dead transitions. [2024-10-14 17:15:36,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 480 transitions, 1461 flow [2024-10-14 17:15:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:15:36,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:15:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 8217 transitions. [2024-10-14 17:15:36,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8479876160990713 [2024-10-14 17:15:36,769 INFO L175 Difference]: Start difference. First operand has 409 places, 390 transitions, 884 flow. Second operand 19 states and 8217 transitions. [2024-10-14 17:15:36,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 480 transitions, 1461 flow [2024-10-14 17:15:36,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 480 transitions, 1357 flow, removed 21 selfloop flow, removed 8 redundant places. [2024-10-14 17:15:36,787 INFO L231 Difference]: Finished difference. Result has 418 places, 397 transitions, 1004 flow [2024-10-14 17:15:36,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1004, PETRI_PLACES=418, PETRI_TRANSITIONS=397} [2024-10-14 17:15:36,788 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -31 predicate places. [2024-10-14 17:15:36,788 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 397 transitions, 1004 flow [2024-10-14 17:15:36,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 428.1578947368421) internal successors, (8135), 19 states have internal predecessors, (8135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:36,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:36,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:36,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 17:15:36,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:15:36,993 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:36,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash -562157278, now seen corresponding path program 2 times [2024-10-14 17:15:36,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:36,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289845745] [2024-10-14 17:15:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:15:37,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:37,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289845745] [2024-10-14 17:15:37,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289845745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:37,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:37,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:37,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38853655] [2024-10-14 17:15:37,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:37,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:37,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:37,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:37,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:38,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 510 [2024-10-14 17:15:38,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 397 transitions, 1004 flow. Second operand has 6 states, 6 states have (on average 442.5) internal successors, (2655), 6 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:38,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:38,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 510 [2024-10-14 17:15:38,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:39,287 INFO L124 PetriNetUnfolderBase]: 653/3303 cut-off events. [2024-10-14 17:15:39,287 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2024-10-14 17:15:39,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5006 conditions, 3303 events. 653/3303 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 25168 event pairs, 130 based on Foata normal form. 0/3059 useless extension candidates. Maximal degree in co-relation 4956. Up to 607 conditions per place. [2024-10-14 17:15:39,328 INFO L140 encePairwiseOnDemand]: 496/510 looper letters, 53 selfloop transitions, 19 changer transitions 0/434 dead transitions. [2024-10-14 17:15:39,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 434 transitions, 1246 flow [2024-10-14 17:15:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2703 transitions. [2024-10-14 17:15:39,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8833333333333333 [2024-10-14 17:15:39,334 INFO L175 Difference]: Start difference. First operand has 418 places, 397 transitions, 1004 flow. Second operand 6 states and 2703 transitions. [2024-10-14 17:15:39,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 434 transitions, 1246 flow [2024-10-14 17:15:39,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 434 transitions, 1181 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-10-14 17:15:39,343 INFO L231 Difference]: Finished difference. Result has 405 places, 415 transitions, 1095 flow [2024-10-14 17:15:39,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1095, PETRI_PLACES=405, PETRI_TRANSITIONS=415} [2024-10-14 17:15:39,345 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -44 predicate places. [2024-10-14 17:15:39,345 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 415 transitions, 1095 flow [2024-10-14 17:15:39,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 442.5) internal successors, (2655), 6 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:39,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:39,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:39,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 17:15:39,347 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:39,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash 592738246, now seen corresponding path program 1 times [2024-10-14 17:15:39,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:39,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694954481] [2024-10-14 17:15:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:39,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:15:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:40,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694954481] [2024-10-14 17:15:40,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694954481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:40,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:40,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 17:15:40,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297128088] [2024-10-14 17:15:40,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:40,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 17:15:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:40,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 17:15:40,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-10-14 17:15:45,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 510 [2024-10-14 17:15:45,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 415 transitions, 1095 flow. Second operand has 20 states, 20 states have (on average 413.6) internal successors, (8272), 20 states have internal predecessors, (8272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:45,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:45,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 510 [2024-10-14 17:15:45,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:47,535 INFO L124 PetriNetUnfolderBase]: 1671/7904 cut-off events. [2024-10-14 17:15:47,535 INFO L125 PetriNetUnfolderBase]: For 3160/3664 co-relation queries the response was YES. [2024-10-14 17:15:47,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13758 conditions, 7904 events. 1671/7904 cut-off events. For 3160/3664 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 81514 event pairs, 448 based on Foata normal form. 180/7364 useless extension candidates. Maximal degree in co-relation 13710. Up to 1419 conditions per place. [2024-10-14 17:15:47,594 INFO L140 encePairwiseOnDemand]: 475/510 looper letters, 82 selfloop transitions, 44 changer transitions 0/468 dead transitions. [2024-10-14 17:15:47,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 468 transitions, 1579 flow [2024-10-14 17:15:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 17:15:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-14 17:15:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 13254 transitions. [2024-10-14 17:15:47,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8121323529411765 [2024-10-14 17:15:47,612 INFO L175 Difference]: Start difference. First operand has 405 places, 415 transitions, 1095 flow. Second operand 32 states and 13254 transitions. [2024-10-14 17:15:47,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 468 transitions, 1579 flow [2024-10-14 17:15:47,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 468 transitions, 1579 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:47,623 INFO L231 Difference]: Finished difference. Result has 440 places, 434 transitions, 1330 flow [2024-10-14 17:15:47,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1330, PETRI_PLACES=440, PETRI_TRANSITIONS=434} [2024-10-14 17:15:47,624 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -9 predicate places. [2024-10-14 17:15:47,624 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 434 transitions, 1330 flow [2024-10-14 17:15:47,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 413.6) internal successors, (8272), 20 states have internal predecessors, (8272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:47,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:47,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:47,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 17:15:47,627 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:47,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:47,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1817904910, now seen corresponding path program 2 times [2024-10-14 17:15:47,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627571421] [2024-10-14 17:15:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:15:49,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:49,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627571421] [2024-10-14 17:15:49,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627571421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:49,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:49,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 17:15:49,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986934405] [2024-10-14 17:15:49,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:49,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 17:15:49,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:49,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 17:15:49,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-10-14 17:15:53,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 510 [2024-10-14 17:15:53,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 434 transitions, 1330 flow. Second operand has 20 states, 20 states have (on average 413.6) internal successors, (8272), 20 states have internal predecessors, (8272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:53,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:53,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 510 [2024-10-14 17:15:53,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:57,123 INFO L124 PetriNetUnfolderBase]: 2275/11656 cut-off events. [2024-10-14 17:15:57,123 INFO L125 PetriNetUnfolderBase]: For 10570/12098 co-relation queries the response was YES. [2024-10-14 17:15:57,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22460 conditions, 11656 events. 2275/11656 cut-off events. For 10570/12098 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 128633 event pairs, 608 based on Foata normal form. 196/10671 useless extension candidates. Maximal degree in co-relation 22407. Up to 1914 conditions per place. [2024-10-14 17:15:57,204 INFO L140 encePairwiseOnDemand]: 475/510 looper letters, 101 selfloop transitions, 50 changer transitions 0/493 dead transitions. [2024-10-14 17:15:57,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 493 transitions, 1971 flow [2024-10-14 17:15:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 17:15:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-14 17:15:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 13253 transitions. [2024-10-14 17:15:57,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8120710784313725 [2024-10-14 17:15:57,215 INFO L175 Difference]: Start difference. First operand has 440 places, 434 transitions, 1330 flow. Second operand 32 states and 13253 transitions. [2024-10-14 17:15:57,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 493 transitions, 1971 flow [2024-10-14 17:15:57,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 493 transitions, 1920 flow, removed 0 selfloop flow, removed 26 redundant places. [2024-10-14 17:15:57,236 INFO L231 Difference]: Finished difference. Result has 449 places, 451 transitions, 1578 flow [2024-10-14 17:15:57,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1279, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1578, PETRI_PLACES=449, PETRI_TRANSITIONS=451} [2024-10-14 17:15:57,237 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, 0 predicate places. [2024-10-14 17:15:57,238 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 451 transitions, 1578 flow [2024-10-14 17:15:57,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 413.6) internal successors, (8272), 20 states have internal predecessors, (8272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:57,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:57,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:57,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 17:15:57,241 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:15:57,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:57,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1116933197, now seen corresponding path program 1 times [2024-10-14 17:15:57,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:57,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924101226] [2024-10-14 17:15:57,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:57,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:15:58,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:58,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924101226] [2024-10-14 17:15:58,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924101226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:58,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:58,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758387563] [2024-10-14 17:15:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:58,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:58,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:58,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:58,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:58,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 510 [2024-10-14 17:15:58,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 451 transitions, 1578 flow. Second operand has 6 states, 6 states have (on average 442.5) internal successors, (2655), 6 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:15:58,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:58,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 510 [2024-10-14 17:15:58,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:02,878 INFO L124 PetriNetUnfolderBase]: 4780/18262 cut-off events. [2024-10-14 17:16:02,878 INFO L125 PetriNetUnfolderBase]: For 20740/21095 co-relation queries the response was YES. [2024-10-14 17:16:02,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39090 conditions, 18262 events. 4780/18262 cut-off events. For 20740/21095 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 211141 event pairs, 781 based on Foata normal form. 266/17189 useless extension candidates. Maximal degree in co-relation 39036. Up to 3538 conditions per place. [2024-10-14 17:16:03,069 INFO L140 encePairwiseOnDemand]: 496/510 looper letters, 76 selfloop transitions, 32 changer transitions 0/496 dead transitions. [2024-10-14 17:16:03,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 496 transitions, 2015 flow [2024-10-14 17:16:03,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:16:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:16:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2703 transitions. [2024-10-14 17:16:03,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8833333333333333 [2024-10-14 17:16:03,073 INFO L175 Difference]: Start difference. First operand has 449 places, 451 transitions, 1578 flow. Second operand 6 states and 2703 transitions. [2024-10-14 17:16:03,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 496 transitions, 2015 flow [2024-10-14 17:16:03,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 496 transitions, 1940 flow, removed 12 selfloop flow, removed 26 redundant places. [2024-10-14 17:16:03,122 INFO L231 Difference]: Finished difference. Result has 433 places, 477 transitions, 1844 flow [2024-10-14 17:16:03,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1507, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1844, PETRI_PLACES=433, PETRI_TRANSITIONS=477} [2024-10-14 17:16:03,124 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -16 predicate places. [2024-10-14 17:16:03,124 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 477 transitions, 1844 flow [2024-10-14 17:16:03,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 442.5) internal successors, (2655), 6 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:03,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:03,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:03,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 17:16:03,126 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:16:03,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1489406644, now seen corresponding path program 1 times [2024-10-14 17:16:03,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:03,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100381530] [2024-10-14 17:16:03,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:03,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:16:03,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:03,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100381530] [2024-10-14 17:16:03,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100381530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:03,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:03,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917576022] [2024-10-14 17:16:03,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:03,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:03,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:03,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:03,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:03,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-14 17:16:03,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 477 transitions, 1844 flow. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:03,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:03,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-14 17:16:03,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:06,304 INFO L124 PetriNetUnfolderBase]: 3185/14336 cut-off events. [2024-10-14 17:16:06,304 INFO L125 PetriNetUnfolderBase]: For 27853/28469 co-relation queries the response was YES. [2024-10-14 17:16:06,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32599 conditions, 14336 events. 3185/14336 cut-off events. For 27853/28469 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 165963 event pairs, 917 based on Foata normal form. 131/13054 useless extension candidates. Maximal degree in co-relation 32542. Up to 2701 conditions per place. [2024-10-14 17:16:06,424 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 49 selfloop transitions, 2 changer transitions 0/483 dead transitions. [2024-10-14 17:16:06,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 483 transitions, 1986 flow [2024-10-14 17:16:06,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2024-10-14 17:16:06,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9137254901960784 [2024-10-14 17:16:06,425 INFO L175 Difference]: Start difference. First operand has 433 places, 477 transitions, 1844 flow. Second operand 3 states and 1398 transitions. [2024-10-14 17:16:06,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 483 transitions, 1986 flow [2024-10-14 17:16:06,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 483 transitions, 1970 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-10-14 17:16:06,466 INFO L231 Difference]: Finished difference. Result has 434 places, 476 transitions, 1830 flow [2024-10-14 17:16:06,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1826, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1830, PETRI_PLACES=434, PETRI_TRANSITIONS=476} [2024-10-14 17:16:06,467 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -15 predicate places. [2024-10-14 17:16:06,467 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 476 transitions, 1830 flow [2024-10-14 17:16:06,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:06,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:06,468 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:06,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 17:16:06,468 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:16:06,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:06,469 INFO L85 PathProgramCache]: Analyzing trace with hash -851236923, now seen corresponding path program 1 times [2024-10-14 17:16:06,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:06,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698152129] [2024-10-14 17:16:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:06,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 17:16:06,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:06,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698152129] [2024-10-14 17:16:06,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698152129] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:16:06,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608497447] [2024-10-14 17:16:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:06,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:16:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:16:06,934 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) [2024-10-14 17:16:06,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:16:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:07,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 17:16:07,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:16:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 17:16:07,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:16:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 17:16:08,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608497447] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:16:08,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:16:08,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2024-10-14 17:16:08,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155418737] [2024-10-14 17:16:08,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:16:08,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-14 17:16:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:08,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-14 17:16:08,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2024-10-14 17:16:09,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 510 [2024-10-14 17:16:09,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 476 transitions, 1830 flow. Second operand has 30 states, 30 states have (on average 425.9) internal successors, (12777), 30 states have internal predecessors, (12777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:09,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:09,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 510 [2024-10-14 17:16:09,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:17,379 INFO L124 PetriNetUnfolderBase]: 7157/29496 cut-off events. [2024-10-14 17:16:17,379 INFO L125 PetriNetUnfolderBase]: For 45030/51021 co-relation queries the response was YES. [2024-10-14 17:16:17,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66911 conditions, 29496 events. 7157/29496 cut-off events. For 45030/51021 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 359164 event pairs, 2138 based on Foata normal form. 662/28311 useless extension candidates. Maximal degree in co-relation 66851. Up to 6149 conditions per place. [2024-10-14 17:16:17,736 INFO L140 encePairwiseOnDemand]: 468/510 looper letters, 130 selfloop transitions, 115 changer transitions 0/611 dead transitions. [2024-10-14 17:16:17,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 611 transitions, 3025 flow [2024-10-14 17:16:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-14 17:16:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-10-14 17:16:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 14556 transitions. [2024-10-14 17:16:17,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8394463667820069 [2024-10-14 17:16:17,746 INFO L175 Difference]: Start difference. First operand has 434 places, 476 transitions, 1830 flow. Second operand 34 states and 14556 transitions. [2024-10-14 17:16:17,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 611 transitions, 3025 flow [2024-10-14 17:16:17,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 611 transitions, 3021 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:17,830 INFO L231 Difference]: Finished difference. Result has 475 places, 554 transitions, 2560 flow [2024-10-14 17:16:17,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1826, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=2560, PETRI_PLACES=475, PETRI_TRANSITIONS=554} [2024-10-14 17:16:17,831 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, 26 predicate places. [2024-10-14 17:16:17,831 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 554 transitions, 2560 flow [2024-10-14 17:16:17,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 425.9) internal successors, (12777), 30 states have internal predecessors, (12777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:17,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:17,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:17,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:16:18,035 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,SelfDestructingSolverStorable24 [2024-10-14 17:16:18,036 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:16:18,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1975076787, now seen corresponding path program 1 times [2024-10-14 17:16:18,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:18,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212168999] [2024-10-14 17:16:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:18,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:16:19,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:19,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212168999] [2024-10-14 17:16:19,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212168999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:19,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:19,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:16:19,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460830414] [2024-10-14 17:16:19,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:19,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:16:19,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:16:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:16:21,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 510 [2024-10-14 17:16:21,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 554 transitions, 2560 flow. Second operand has 15 states, 15 states have (on average 418.2) internal successors, (6273), 15 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:21,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:21,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 510 [2024-10-14 17:16:21,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:30,100 INFO L124 PetriNetUnfolderBase]: 8444/33360 cut-off events. [2024-10-14 17:16:30,100 INFO L125 PetriNetUnfolderBase]: For 66317/69168 co-relation queries the response was YES. [2024-10-14 17:16:30,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80864 conditions, 33360 events. 8444/33360 cut-off events. For 66317/69168 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 407757 event pairs, 1702 based on Foata normal form. 1014/31465 useless extension candidates. Maximal degree in co-relation 80790. Up to 5335 conditions per place. [2024-10-14 17:16:30,522 INFO L140 encePairwiseOnDemand]: 478/510 looper letters, 149 selfloop transitions, 67 changer transitions 0/635 dead transitions. [2024-10-14 17:16:30,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 635 transitions, 3628 flow [2024-10-14 17:16:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 17:16:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-14 17:16:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 10057 transitions. [2024-10-14 17:16:30,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8216503267973856 [2024-10-14 17:16:30,531 INFO L175 Difference]: Start difference. First operand has 475 places, 554 transitions, 2560 flow. Second operand 24 states and 10057 transitions. [2024-10-14 17:16:30,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 635 transitions, 3628 flow [2024-10-14 17:16:30,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 635 transitions, 3544 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-10-14 17:16:30,911 INFO L231 Difference]: Finished difference. Result has 498 places, 566 transitions, 2825 flow [2024-10-14 17:16:30,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=2476, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2825, PETRI_PLACES=498, PETRI_TRANSITIONS=566} [2024-10-14 17:16:30,912 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, 49 predicate places. [2024-10-14 17:16:30,912 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 566 transitions, 2825 flow [2024-10-14 17:16:30,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 418.2) internal successors, (6273), 15 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:30,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:30,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:30,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 17:16:30,914 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-14 17:16:30,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash -813073543, now seen corresponding path program 2 times [2024-10-14 17:16:30,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:30,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10341464] [2024-10-14 17:16:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:30,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-14 17:16:32,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:32,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10341464] [2024-10-14 17:16:32,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10341464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:32,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:32,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:16:32,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740411044] [2024-10-14 17:16:32,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:32,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:16:32,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:32,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:16:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:16:34,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 510 [2024-10-14 17:16:34,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 566 transitions, 2825 flow. Second operand has 15 states, 15 states have (on average 418.2) internal successors, (6273), 15 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:34,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:34,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 510 [2024-10-14 17:16:34,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand