./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:02:51,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:02:51,645 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:02:51,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:02:51,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:02:51,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:02:51,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:02:51,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:02:51,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:02:51,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:02:51,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:02:51,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:02:51,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:02:51,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:02:51,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:02:51,688 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:02:51,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:02:51,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:02:51,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:02:51,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:02:51,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:02:51,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:02:51,690 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:02:51,690 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:02:51,691 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:02:51,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:02:51,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:02:51,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:02:51,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:02:51,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:02:51,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:02:51,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:02:51,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:02:51,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:02:51,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:02:51,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:02:51,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:02:51,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:02:51,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:02:51,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:02:51,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:02:51,696 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-09 07:02:51,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:02:51,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:02:51,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:02:51,946 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:02:51,947 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:02:51,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-09 07:02:53,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:02:53,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:02:53,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-09 07:02:53,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f2df07c0/d35c1ffe45e7442093e64737e19c9b48/FLAGee17489b9 [2024-11-09 07:02:53,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f2df07c0/d35c1ffe45e7442093e64737e19c9b48 [2024-11-09 07:02:53,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:02:53,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:02:53,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:02:53,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:02:53,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:02:53,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d972a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53, skipping insertion in model container [2024-11-09 07:02:53,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:02:53,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:02:53,747 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:02:53,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:02:53,783 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:02:53,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53 WrapperNode [2024-11-09 07:02:53,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:02:53,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:02:53,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:02:53,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:02:53,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,832 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 189 [2024-11-09 07:02:53,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:02:53,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:02:53,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:02:53,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:02:53,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:02:53,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:02:53,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:02:53,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:02:53,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (1/1) ... [2024-11-09 07:02:53,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:02:53,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:02:53,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:02:53,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:02:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:02:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 07:02:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 07:02:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 07:02:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:02:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:02:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:02:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:02:53,950 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:02:54,036 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:02:54,037 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:02:54,530 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:02:54,530 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:02:54,676 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:02:54,678 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-09 07:02:54,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:54 BoogieIcfgContainer [2024-11-09 07:02:54,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:02:54,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:02:54,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:02:54,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:02:54,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:02:53" (1/3) ... [2024-11-09 07:02:54,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2846b0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:02:54, skipping insertion in model container [2024-11-09 07:02:54,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:53" (2/3) ... [2024-11-09 07:02:54,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2846b0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:02:54, skipping insertion in model container [2024-11-09 07:02:54,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:54" (3/3) ... [2024-11-09 07:02:54,686 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-09 07:02:54,701 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:02:54,701 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-11-09 07:02:54,702 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:02:54,791 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 07:02:54,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 344 transitions, 709 flow [2024-11-09 07:02:54,923 INFO L124 PetriNetUnfolderBase]: 20/341 cut-off events. [2024-11-09 07:02:54,923 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 07:02:54,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 341 events. 20/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 460 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 291. Up to 2 conditions per place. [2024-11-09 07:02:54,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 344 transitions, 709 flow [2024-11-09 07:02:54,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 324 transitions, 666 flow [2024-11-09 07:02:54,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:02:54,956 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;@29d08200, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:02:54,956 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-09 07:02:54,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:02:54,962 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-09 07:02:54,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:02:54,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:54,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:54,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:54,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 335780089, now seen corresponding path program 1 times [2024-11-09 07:02:54,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:54,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810697944] [2024-11-09 07:02:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:55,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:55,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810697944] [2024-11-09 07:02:55,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810697944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:55,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:55,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:55,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12361823] [2024-11-09 07:02:55,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:55,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:55,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:55,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:55,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 344 [2024-11-09 07:02:55,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 324 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:55,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:55,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 344 [2024-11-09 07:02:55,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:55,514 INFO L124 PetriNetUnfolderBase]: 85/884 cut-off events. [2024-11-09 07:02:55,515 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-09 07:02:55,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 884 events. 85/884 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4499 event pairs, 51 based on Foata normal form. 9/749 useless extension candidates. Maximal degree in co-relation 759. Up to 134 conditions per place. [2024-11-09 07:02:55,528 INFO L140 encePairwiseOnDemand]: 317/344 looper letters, 18 selfloop transitions, 2 changer transitions 6/299 dead transitions. [2024-11-09 07:02:55,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 656 flow [2024-11-09 07:02:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 933 transitions. [2024-11-09 07:02:55,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9040697674418605 [2024-11-09 07:02:55,550 INFO L175 Difference]: Start difference. First operand has 315 places, 324 transitions, 666 flow. Second operand 3 states and 933 transitions. [2024-11-09 07:02:55,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 656 flow [2024-11-09 07:02:55,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 644 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-09 07:02:55,563 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 596 flow [2024-11-09 07:02:55,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-11-09 07:02:55,568 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -17 predicate places. [2024-11-09 07:02:55,571 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 596 flow [2024-11-09 07:02:55,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:55,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:55,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:55,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:02:55,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:55,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:55,573 INFO L85 PathProgramCache]: Analyzing trace with hash -948979931, now seen corresponding path program 1 times [2024-11-09 07:02:55,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:55,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810060733] [2024-11-09 07:02:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:55,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:55,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:55,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810060733] [2024-11-09 07:02:55,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810060733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:55,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:55,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:55,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506048737] [2024-11-09 07:02:55,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:55,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:55,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:55,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 344 [2024-11-09 07:02:55,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:55,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:55,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 344 [2024-11-09 07:02:55,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:55,832 INFO L124 PetriNetUnfolderBase]: 213/995 cut-off events. [2024-11-09 07:02:55,833 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-09 07:02:55,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 995 events. 213/995 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5265 event pairs, 128 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1281. Up to 297 conditions per place. [2024-11-09 07:02:55,843 INFO L140 encePairwiseOnDemand]: 337/344 looper letters, 21 selfloop transitions, 1 changer transitions 0/287 dead transitions. [2024-11-09 07:02:55,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 287 transitions, 628 flow [2024-11-09 07:02:55,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:55,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2024-11-09 07:02:55,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2024-11-09 07:02:55,847 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 596 flow. Second operand 3 states and 898 transitions. [2024-11-09 07:02:55,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 287 transitions, 628 flow [2024-11-09 07:02:55,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 287 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:02:55,852 INFO L231 Difference]: Finished difference. Result has 286 places, 287 transitions, 582 flow [2024-11-09 07:02:55,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=286, PETRI_TRANSITIONS=287} [2024-11-09 07:02:55,853 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-11-09 07:02:55,854 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 287 transitions, 582 flow [2024-11-09 07:02:55,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:55,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:55,855 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:55,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:02:55,855 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:55,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash 785090757, now seen corresponding path program 1 times [2024-11-09 07:02:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:55,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099677040] [2024-11-09 07:02:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:55,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099677040] [2024-11-09 07:02:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099677040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:56,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:56,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:02:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10989145] [2024-11-09 07:02:56,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:56,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:02:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:56,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:02:56,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:02:56,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 344 [2024-11-09 07:02:56,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 287 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:56,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:56,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 344 [2024-11-09 07:02:56,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:56,870 INFO L124 PetriNetUnfolderBase]: 157/944 cut-off events. [2024-11-09 07:02:56,870 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-09 07:02:56,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 944 events. 157/944 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4613 event pairs, 100 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1221. Up to 263 conditions per place. [2024-11-09 07:02:56,877 INFO L140 encePairwiseOnDemand]: 326/344 looper letters, 41 selfloop transitions, 15 changer transitions 0/284 dead transitions. [2024-11-09 07:02:56,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 284 transitions, 688 flow [2024-11-09 07:02:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:02:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:02:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1613 transitions. [2024-11-09 07:02:56,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7814922480620154 [2024-11-09 07:02:56,882 INFO L175 Difference]: Start difference. First operand has 286 places, 287 transitions, 582 flow. Second operand 6 states and 1613 transitions. [2024-11-09 07:02:56,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 284 transitions, 688 flow [2024-11-09 07:02:56,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 284 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:02:56,886 INFO L231 Difference]: Finished difference. Result has 287 places, 284 transitions, 605 flow [2024-11-09 07:02:56,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=287, PETRI_TRANSITIONS=284} [2024-11-09 07:02:56,889 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -28 predicate places. [2024-11-09 07:02:56,889 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 605 flow [2024-11-09 07:02:56,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:56,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:56,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:56,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:02:56,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:56,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash 82838698, now seen corresponding path program 1 times [2024-11-09 07:02:56,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:56,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429220061] [2024-11-09 07:02:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:56,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:56,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429220061] [2024-11-09 07:02:56,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429220061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:56,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:56,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:56,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393429620] [2024-11-09 07:02:56,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:56,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:56,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:56,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:56,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:56,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-11-09 07:02:56,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 284 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:56,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:56,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-11-09 07:02:56,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:57,023 INFO L124 PetriNetUnfolderBase]: 45/439 cut-off events. [2024-11-09 07:02:57,024 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:02:57,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 439 events. 45/439 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1327 event pairs, 23 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 500. Up to 67 conditions per place. [2024-11-09 07:02:57,027 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2024-11-09 07:02:57,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 283 transitions, 633 flow [2024-11-09 07:02:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-11-09 07:02:57,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-11-09 07:02:57,029 INFO L175 Difference]: Start difference. First operand has 287 places, 284 transitions, 605 flow. Second operand 3 states and 919 transitions. [2024-11-09 07:02:57,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 283 transitions, 633 flow [2024-11-09 07:02:57,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 283 transitions, 603 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:02:57,034 INFO L231 Difference]: Finished difference. Result has 283 places, 283 transitions, 577 flow [2024-11-09 07:02:57,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=283, PETRI_TRANSITIONS=283} [2024-11-09 07:02:57,035 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-11-09 07:02:57,037 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 283 transitions, 577 flow [2024-11-09 07:02:57,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:57,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:57,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:02:57,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:57,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1979469290, now seen corresponding path program 1 times [2024-11-09 07:02:57,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:57,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855570126] [2024-11-09 07:02:57,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855570126] [2024-11-09 07:02:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855570126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:57,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:57,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024255556] [2024-11-09 07:02:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:57,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:57,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-11-09 07:02:57,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 283 transitions, 577 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:57,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-11-09 07:02:57,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:57,177 INFO L124 PetriNetUnfolderBase]: 45/438 cut-off events. [2024-11-09 07:02:57,178 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:02:57,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 438 events. 45/438 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1305 event pairs, 23 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 486. Up to 67 conditions per place. [2024-11-09 07:02:57,180 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-11-09 07:02:57,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 282 transitions, 605 flow [2024-11-09 07:02:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-11-09 07:02:57,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-11-09 07:02:57,186 INFO L175 Difference]: Start difference. First operand has 283 places, 283 transitions, 577 flow. Second operand 3 states and 919 transitions. [2024-11-09 07:02:57,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 282 transitions, 605 flow [2024-11-09 07:02:57,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 282 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:02:57,190 INFO L231 Difference]: Finished difference. Result has 282 places, 282 transitions, 575 flow [2024-11-09 07:02:57,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=282, PETRI_TRANSITIONS=282} [2024-11-09 07:02:57,192 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-11-09 07:02:57,192 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 282 transitions, 575 flow [2024-11-09 07:02:57,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:57,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:57,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:02:57,193 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:57,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash -166747507, now seen corresponding path program 1 times [2024-11-09 07:02:57,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:57,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509359245] [2024-11-09 07:02:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:57,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:57,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509359245] [2024-11-09 07:02:57,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509359245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:57,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:57,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854900053] [2024-11-09 07:02:57,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:57,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:57,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:57,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:57,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:57,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-09 07:02:57,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 282 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:57,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-09 07:02:57,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:57,342 INFO L124 PetriNetUnfolderBase]: 28/352 cut-off events. [2024-11-09 07:02:57,343 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:02:57,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 352 events. 28/352 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 779 event pairs, 12 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 374. Up to 44 conditions per place. [2024-11-09 07:02:57,345 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 12 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-11-09 07:02:57,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 281 transitions, 601 flow [2024-11-09 07:02:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-09 07:02:57,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8924418604651163 [2024-11-09 07:02:57,348 INFO L175 Difference]: Start difference. First operand has 282 places, 282 transitions, 575 flow. Second operand 3 states and 921 transitions. [2024-11-09 07:02:57,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 281 transitions, 601 flow [2024-11-09 07:02:57,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 281 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:02:57,354 INFO L231 Difference]: Finished difference. Result has 281 places, 281 transitions, 573 flow [2024-11-09 07:02:57,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=281, PETRI_TRANSITIONS=281} [2024-11-09 07:02:57,356 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -34 predicate places. [2024-11-09 07:02:57,357 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 281 transitions, 573 flow [2024-11-09 07:02:57,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:57,358 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:57,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:02:57,358 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:57,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:57,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2088733689, now seen corresponding path program 1 times [2024-11-09 07:02:57,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:57,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387162857] [2024-11-09 07:02:57,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:57,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:57,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387162857] [2024-11-09 07:02:57,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387162857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:57,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:57,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:57,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965843827] [2024-11-09 07:02:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:57,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:57,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:57,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:57,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:57,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-09 07:02:57,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 281 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:57,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-09 07:02:57,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:57,514 INFO L124 PetriNetUnfolderBase]: 84/726 cut-off events. [2024-11-09 07:02:57,514 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-09 07:02:57,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 726 events. 84/726 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3137 event pairs, 23 based on Foata normal form. 0/652 useless extension candidates. Maximal degree in co-relation 838. Up to 70 conditions per place. [2024-11-09 07:02:57,519 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 16 selfloop transitions, 3 changer transitions 0/284 dead transitions. [2024-11-09 07:02:57,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 284 transitions, 619 flow [2024-11-09 07:02:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 927 transitions. [2024-11-09 07:02:57,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8982558139534884 [2024-11-09 07:02:57,521 INFO L175 Difference]: Start difference. First operand has 281 places, 281 transitions, 573 flow. Second operand 3 states and 927 transitions. [2024-11-09 07:02:57,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 284 transitions, 619 flow [2024-11-09 07:02:57,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:02:57,528 INFO L231 Difference]: Finished difference. Result has 279 places, 279 transitions, 571 flow [2024-11-09 07:02:57,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=279, PETRI_TRANSITIONS=279} [2024-11-09 07:02:57,529 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-11-09 07:02:57,529 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 279 transitions, 571 flow [2024-11-09 07:02:57,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:57,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:57,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:02:57,530 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:57,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1523378363, now seen corresponding path program 1 times [2024-11-09 07:02:57,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:57,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815227269] [2024-11-09 07:02:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:57,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:57,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815227269] [2024-11-09 07:02:57,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815227269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:57,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:57,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:57,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5830742] [2024-11-09 07:02:57,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:57,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:57,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:57,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-11-09 07:02:57,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:57,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-11-09 07:02:57,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:57,681 INFO L124 PetriNetUnfolderBase]: 76/765 cut-off events. [2024-11-09 07:02:57,681 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 07:02:57,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 765 events. 76/765 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3511 event pairs, 8 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 878. Up to 99 conditions per place. [2024-11-09 07:02:57,686 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 19 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-11-09 07:02:57,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 287 transitions, 634 flow [2024-11-09 07:02:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-11-09 07:02:57,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079457364341085 [2024-11-09 07:02:57,688 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 571 flow. Second operand 3 states and 937 transitions. [2024-11-09 07:02:57,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 287 transitions, 634 flow [2024-11-09 07:02:57,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 287 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:02:57,694 INFO L231 Difference]: Finished difference. Result has 279 places, 280 transitions, 577 flow [2024-11-09 07:02:57,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=279, PETRI_TRANSITIONS=280} [2024-11-09 07:02:57,695 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-11-09 07:02:57,695 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 280 transitions, 577 flow [2024-11-09 07:02:57,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:57,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:57,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:57,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:02:57,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:57,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:57,697 INFO L85 PathProgramCache]: Analyzing trace with hash -273573217, now seen corresponding path program 1 times [2024-11-09 07:02:57,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:57,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085396882] [2024-11-09 07:02:57,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:57,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:57,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085396882] [2024-11-09 07:02:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085396882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:57,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:57,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:02:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124915862] [2024-11-09 07:02:57,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:57,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:02:57,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:57,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:02:57,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:02:58,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 344 [2024-11-09 07:02:58,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 280 transitions, 577 flow. Second operand has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:58,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:58,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 344 [2024-11-09 07:02:58,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:58,518 INFO L124 PetriNetUnfolderBase]: 193/1399 cut-off events. [2024-11-09 07:02:58,518 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-09 07:02:58,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 1399 events. 193/1399 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6802 event pairs, 96 based on Foata normal form. 9/1319 useless extension candidates. Maximal degree in co-relation 1898. Up to 201 conditions per place. [2024-11-09 07:02:58,525 INFO L140 encePairwiseOnDemand]: 315/344 looper letters, 52 selfloop transitions, 42 changer transitions 0/331 dead transitions. [2024-11-09 07:02:58,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 331 transitions, 885 flow [2024-11-09 07:02:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:02:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 07:02:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2852 transitions. [2024-11-09 07:02:58,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2024-11-09 07:02:58,531 INFO L175 Difference]: Start difference. First operand has 279 places, 280 transitions, 577 flow. Second operand 10 states and 2852 transitions. [2024-11-09 07:02:58,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 331 transitions, 885 flow [2024-11-09 07:02:58,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 331 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:02:58,535 INFO L231 Difference]: Finished difference. Result has 292 places, 305 transitions, 769 flow [2024-11-09 07:02:58,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=769, PETRI_PLACES=292, PETRI_TRANSITIONS=305} [2024-11-09 07:02:58,537 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-11-09 07:02:58,537 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 305 transitions, 769 flow [2024-11-09 07:02:58,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:58,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:58,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:58,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:02:58,538 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:58,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:58,539 INFO L85 PathProgramCache]: Analyzing trace with hash 172631913, now seen corresponding path program 1 times [2024-11-09 07:02:58,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:58,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594542593] [2024-11-09 07:02:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:58,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:58,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594542593] [2024-11-09 07:02:58,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594542593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:58,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:58,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:58,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383872462] [2024-11-09 07:02:58,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:58,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:58,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:58,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:58,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 344 [2024-11-09 07:02:58,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 305 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:58,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:58,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 344 [2024-11-09 07:02:58,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:58,691 INFO L124 PetriNetUnfolderBase]: 81/937 cut-off events. [2024-11-09 07:02:58,691 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2024-11-09 07:02:58,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 937 events. 81/937 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3505 event pairs, 30 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 1189. Up to 112 conditions per place. [2024-11-09 07:02:58,696 INFO L140 encePairwiseOnDemand]: 342/344 looper letters, 11 selfloop transitions, 1 changer transitions 0/304 dead transitions. [2024-11-09 07:02:58,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 304 transitions, 791 flow [2024-11-09 07:02:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:58,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-11-09 07:02:58,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9011627906976745 [2024-11-09 07:02:58,699 INFO L175 Difference]: Start difference. First operand has 292 places, 305 transitions, 769 flow. Second operand 3 states and 930 transitions. [2024-11-09 07:02:58,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 304 transitions, 791 flow [2024-11-09 07:02:58,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 304 transitions, 791 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:02:58,703 INFO L231 Difference]: Finished difference. Result has 293 places, 304 transitions, 769 flow [2024-11-09 07:02:58,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=293, PETRI_TRANSITIONS=304} [2024-11-09 07:02:58,704 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-11-09 07:02:58,705 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 304 transitions, 769 flow [2024-11-09 07:02:58,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:58,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:58,706 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:58,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:02:58,706 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:58,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:58,706 INFO L85 PathProgramCache]: Analyzing trace with hash 34836619, now seen corresponding path program 1 times [2024-11-09 07:02:58,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:58,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054101578] [2024-11-09 07:02:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:58,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:58,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:58,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054101578] [2024-11-09 07:02:58,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054101578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:58,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:58,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:58,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695926035] [2024-11-09 07:02:58,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:58,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:58,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:58,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:58,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-09 07:02:58,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 304 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:58,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:58,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-09 07:02:58,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:02:58,924 INFO L124 PetriNetUnfolderBase]: 128/1063 cut-off events. [2024-11-09 07:02:58,924 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-09 07:02:58,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 1063 events. 128/1063 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4499 event pairs, 37 based on Foata normal form. 4/1009 useless extension candidates. Maximal degree in co-relation 1424. Up to 136 conditions per place. [2024-11-09 07:02:58,930 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 15 selfloop transitions, 2 changer transitions 28/307 dead transitions. [2024-11-09 07:02:58,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 307 transitions, 817 flow [2024-11-09 07:02:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:02:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2024-11-09 07:02:58,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972868217054264 [2024-11-09 07:02:58,933 INFO L175 Difference]: Start difference. First operand has 293 places, 304 transitions, 769 flow. Second operand 3 states and 926 transitions. [2024-11-09 07:02:58,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 307 transitions, 817 flow [2024-11-09 07:02:58,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 307 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:02:58,940 INFO L231 Difference]: Finished difference. Result has 292 places, 274 transitions, 644 flow [2024-11-09 07:02:58,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=292, PETRI_TRANSITIONS=274} [2024-11-09 07:02:58,941 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-11-09 07:02:58,941 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 274 transitions, 644 flow [2024-11-09 07:02:58,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:58,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:02:58,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:58,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:02:58,942 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:02:58,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:58,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1634000130, now seen corresponding path program 1 times [2024-11-09 07:02:58,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:02:58,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696046875] [2024-11-09 07:02:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:59,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:02:59,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:02:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696046875] [2024-11-09 07:02:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696046875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:59,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:59,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:02:59,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475272998] [2024-11-09 07:02:59,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:59,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:02:59,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:02:59,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:02:59,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:02:59,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-11-09 07:02:59,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 274 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:59,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:02:59,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-11-09 07:02:59,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:00,048 INFO L124 PetriNetUnfolderBase]: 228/1362 cut-off events. [2024-11-09 07:03:00,048 INFO L125 PetriNetUnfolderBase]: For 162/169 co-relation queries the response was YES. [2024-11-09 07:03:00,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 1362 events. 228/1362 cut-off events. For 162/169 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8198 event pairs, 74 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1978. Up to 282 conditions per place. [2024-11-09 07:03:00,058 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 47 selfloop transitions, 10 changer transitions 0/299 dead transitions. [2024-11-09 07:03:00,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 299 transitions, 824 flow [2024-11-09 07:03:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:03:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:03:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-11-09 07:03:00,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-11-09 07:03:00,062 INFO L175 Difference]: Start difference. First operand has 292 places, 274 transitions, 644 flow. Second operand 6 states and 1773 transitions. [2024-11-09 07:03:00,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 299 transitions, 824 flow [2024-11-09 07:03:00,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 299 transitions, 768 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-11-09 07:03:00,068 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 668 flow [2024-11-09 07:03:00,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=668, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2024-11-09 07:03:00,069 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-11-09 07:03:00,069 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 668 flow [2024-11-09 07:03:00,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:00,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:00,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:00,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:03:00,071 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:00,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash 999190661, now seen corresponding path program 1 times [2024-11-09 07:03:00,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:00,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222289425] [2024-11-09 07:03:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:00,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:00,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:00,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222289425] [2024-11-09 07:03:00,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222289425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:00,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:00,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:03:00,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143681580] [2024-11-09 07:03:00,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:00,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:03:00,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:00,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:03:00,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:03:00,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-09 07:03:00,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:00,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:00,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-09 07:03:00,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:00,326 INFO L124 PetriNetUnfolderBase]: 254/1386 cut-off events. [2024-11-09 07:03:00,327 INFO L125 PetriNetUnfolderBase]: For 672/672 co-relation queries the response was YES. [2024-11-09 07:03:00,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2298 conditions, 1386 events. 254/1386 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8323 event pairs, 84 based on Foata normal form. 0/1298 useless extension candidates. Maximal degree in co-relation 2260. Up to 265 conditions per place. [2024-11-09 07:03:00,338 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 22 selfloop transitions, 2 changer transitions 0/288 dead transitions. [2024-11-09 07:03:00,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 288 transitions, 738 flow [2024-11-09 07:03:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:03:00,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:03:00,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-11-09 07:03:00,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-11-09 07:03:00,341 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 668 flow. Second operand 3 states and 925 transitions. [2024-11-09 07:03:00,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 288 transitions, 738 flow [2024-11-09 07:03:00,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 288 transitions, 728 flow, removed 5 selfloop flow, removed 0 redundant places. [2024-11-09 07:03:00,345 INFO L231 Difference]: Finished difference. Result has 283 places, 282 transitions, 662 flow [2024-11-09 07:03:00,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=283, PETRI_TRANSITIONS=282} [2024-11-09 07:03:00,346 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-11-09 07:03:00,347 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 282 transitions, 662 flow [2024-11-09 07:03:00,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:00,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:00,348 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:00,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:03:00,348 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:00,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1211790518, now seen corresponding path program 1 times [2024-11-09 07:03:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:00,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438922324] [2024-11-09 07:03:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:00,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438922324] [2024-11-09 07:03:00,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438922324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:00,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:00,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:03:00,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241976905] [2024-11-09 07:03:00,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:00,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:03:00,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:03:00,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:03:00,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-11-09 07:03:00,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 282 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:00,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:00,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-11-09 07:03:00,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:00,556 INFO L124 PetriNetUnfolderBase]: 187/1151 cut-off events. [2024-11-09 07:03:00,556 INFO L125 PetriNetUnfolderBase]: For 407/418 co-relation queries the response was YES. [2024-11-09 07:03:00,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 1151 events. 187/1151 cut-off events. For 407/418 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6057 event pairs, 4 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1808. Up to 213 conditions per place. [2024-11-09 07:03:00,566 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 21 selfloop transitions, 7 changer transitions 0/293 dead transitions. [2024-11-09 07:03:00,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 293 transitions, 764 flow [2024-11-09 07:03:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:03:00,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:03:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2024-11-09 07:03:00,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060077519379846 [2024-11-09 07:03:00,568 INFO L175 Difference]: Start difference. First operand has 283 places, 282 transitions, 662 flow. Second operand 3 states and 935 transitions. [2024-11-09 07:03:00,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 293 transitions, 764 flow [2024-11-09 07:03:00,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 293 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:03:00,572 INFO L231 Difference]: Finished difference. Result has 283 places, 287 transitions, 721 flow [2024-11-09 07:03:00,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=283, PETRI_TRANSITIONS=287} [2024-11-09 07:03:00,573 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-11-09 07:03:00,574 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 287 transitions, 721 flow [2024-11-09 07:03:00,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:00,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:00,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:00,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:03:00,575 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:00,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2014053489, now seen corresponding path program 1 times [2024-11-09 07:03:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:00,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027714971] [2024-11-09 07:03:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:00,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:01,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:01,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027714971] [2024-11-09 07:03:01,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027714971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:01,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:01,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-09 07:03:01,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444527087] [2024-11-09 07:03:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:01,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 07:03:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:01,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 07:03:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:03:03,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 344 [2024-11-09 07:03:03,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 287 transitions, 721 flow. Second operand has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:03,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:03,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 344 [2024-11-09 07:03:03,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:05,417 INFO L124 PetriNetUnfolderBase]: 672/2542 cut-off events. [2024-11-09 07:03:05,417 INFO L125 PetriNetUnfolderBase]: For 915/946 co-relation queries the response was YES. [2024-11-09 07:03:05,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4685 conditions, 2542 events. 672/2542 cut-off events. For 915/946 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18430 event pairs, 168 based on Foata normal form. 26/2406 useless extension candidates. Maximal degree in co-relation 4642. Up to 363 conditions per place. [2024-11-09 07:03:05,438 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 77 selfloop transitions, 35 changer transitions 0/318 dead transitions. [2024-11-09 07:03:05,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 318 transitions, 1037 flow [2024-11-09 07:03:05,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 07:03:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-09 07:03:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8098 transitions. [2024-11-09 07:03:05,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356468023255814 [2024-11-09 07:03:05,449 INFO L175 Difference]: Start difference. First operand has 283 places, 287 transitions, 721 flow. Second operand 32 states and 8098 transitions. [2024-11-09 07:03:05,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 318 transitions, 1037 flow [2024-11-09 07:03:05,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 318 transitions, 1037 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:03:05,456 INFO L231 Difference]: Finished difference. Result has 313 places, 286 transitions, 787 flow [2024-11-09 07:03:05,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=787, PETRI_PLACES=313, PETRI_TRANSITIONS=286} [2024-11-09 07:03:05,458 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -2 predicate places. [2024-11-09 07:03:05,458 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 286 transitions, 787 flow [2024-11-09 07:03:05,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:05,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:05,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:05,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:03:05,460 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:05,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:05,461 INFO L85 PathProgramCache]: Analyzing trace with hash 336067950, now seen corresponding path program 1 times [2024-11-09 07:03:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:05,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072216720] [2024-11-09 07:03:05,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:05,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:05,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:05,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072216720] [2024-11-09 07:03:05,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072216720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:05,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:05,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:03:05,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744654883] [2024-11-09 07:03:05,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:05,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:03:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:03:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:03:05,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-11-09 07:03:05,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 286 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:05,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:05,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-11-09 07:03:05,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:06,468 INFO L124 PetriNetUnfolderBase]: 370/1801 cut-off events. [2024-11-09 07:03:06,468 INFO L125 PetriNetUnfolderBase]: For 1458/1466 co-relation queries the response was YES. [2024-11-09 07:03:06,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3466 conditions, 1801 events. 370/1801 cut-off events. For 1458/1466 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 11607 event pairs, 85 based on Foata normal form. 8/1711 useless extension candidates. Maximal degree in co-relation 3425. Up to 413 conditions per place. [2024-11-09 07:03:06,486 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 56 selfloop transitions, 15 changer transitions 0/315 dead transitions. [2024-11-09 07:03:06,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 1047 flow [2024-11-09 07:03:06,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:03:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:03:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-11-09 07:03:06,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-11-09 07:03:06,491 INFO L175 Difference]: Start difference. First operand has 313 places, 286 transitions, 787 flow. Second operand 6 states and 1773 transitions. [2024-11-09 07:03:06,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 1047 flow [2024-11-09 07:03:06,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 315 transitions, 975 flow, removed 0 selfloop flow, removed 31 redundant places. [2024-11-09 07:03:06,497 INFO L231 Difference]: Finished difference. Result has 292 places, 299 transitions, 869 flow [2024-11-09 07:03:06,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=292, PETRI_TRANSITIONS=299} [2024-11-09 07:03:06,498 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-11-09 07:03:06,498 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 299 transitions, 869 flow [2024-11-09 07:03:06,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:06,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:06,499 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:06,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 07:03:06,499 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:06,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1382227983, now seen corresponding path program 1 times [2024-11-09 07:03:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:06,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157472374] [2024-11-09 07:03:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:06,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:06,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:06,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157472374] [2024-11-09 07:03:06,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157472374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:06,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:06,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:03:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918023518] [2024-11-09 07:03:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:06,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:03:06,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:03:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:03:06,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-11-09 07:03:06,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 299 transitions, 869 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:06,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:06,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-11-09 07:03:06,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:06,828 INFO L124 PetriNetUnfolderBase]: 426/1665 cut-off events. [2024-11-09 07:03:06,828 INFO L125 PetriNetUnfolderBase]: For 3481/3508 co-relation queries the response was YES. [2024-11-09 07:03:06,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3884 conditions, 1665 events. 426/1665 cut-off events. For 3481/3508 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9866 event pairs, 92 based on Foata normal form. 0/1568 useless extension candidates. Maximal degree in co-relation 3840. Up to 429 conditions per place. [2024-11-09 07:03:06,848 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 36 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-11-09 07:03:06,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 305 transitions, 987 flow [2024-11-09 07:03:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:03:06,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:03:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-11-09 07:03:06,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-11-09 07:03:06,853 INFO L175 Difference]: Start difference. First operand has 292 places, 299 transitions, 869 flow. Second operand 3 states and 925 transitions. [2024-11-09 07:03:06,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 305 transitions, 987 flow [2024-11-09 07:03:06,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 305 transitions, 957 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-11-09 07:03:06,861 INFO L231 Difference]: Finished difference. Result has 293 places, 298 transitions, 847 flow [2024-11-09 07:03:06,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=847, PETRI_PLACES=293, PETRI_TRANSITIONS=298} [2024-11-09 07:03:06,862 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-11-09 07:03:06,862 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 298 transitions, 847 flow [2024-11-09 07:03:06,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:06,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:06,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:06,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:03:06,863 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:06,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -503447583, now seen corresponding path program 1 times [2024-11-09 07:03:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:06,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491246719] [2024-11-09 07:03:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:07,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:07,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491246719] [2024-11-09 07:03:07,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491246719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:07,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:07,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 07:03:07,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843445092] [2024-11-09 07:03:07,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:07,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:03:07,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:07,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:03:07,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-09 07:03:09,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-11-09 07:03:09,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 298 transitions, 847 flow. Second operand has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:09,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:09,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-11-09 07:03:09,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:10,461 INFO L124 PetriNetUnfolderBase]: 1557/5365 cut-off events. [2024-11-09 07:03:10,462 INFO L125 PetriNetUnfolderBase]: For 5978/6629 co-relation queries the response was YES. [2024-11-09 07:03:10,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11007 conditions, 5365 events. 1557/5365 cut-off events. For 5978/6629 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 44867 event pairs, 286 based on Foata normal form. 148/5032 useless extension candidates. Maximal degree in co-relation 10959. Up to 793 conditions per place. [2024-11-09 07:03:10,503 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 109 selfloop transitions, 58 changer transitions 4/388 dead transitions. [2024-11-09 07:03:10,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 388 transitions, 1728 flow [2024-11-09 07:03:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 07:03:10,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 07:03:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6556 transitions. [2024-11-09 07:03:10,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7623255813953488 [2024-11-09 07:03:10,516 INFO L175 Difference]: Start difference. First operand has 293 places, 298 transitions, 847 flow. Second operand 25 states and 6556 transitions. [2024-11-09 07:03:10,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 388 transitions, 1728 flow [2024-11-09 07:03:10,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 388 transitions, 1724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:03:10,531 INFO L231 Difference]: Finished difference. Result has 320 places, 326 transitions, 1258 flow [2024-11-09 07:03:10,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1258, PETRI_PLACES=320, PETRI_TRANSITIONS=326} [2024-11-09 07:03:10,532 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 5 predicate places. [2024-11-09 07:03:10,532 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 326 transitions, 1258 flow [2024-11-09 07:03:10,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:10,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:10,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:10,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:03:10,534 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:10,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1741826335, now seen corresponding path program 2 times [2024-11-09 07:03:10,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:10,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617570107] [2024-11-09 07:03:10,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:03:11,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:11,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617570107] [2024-11-09 07:03:11,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617570107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:11,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:11,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 07:03:11,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862573323] [2024-11-09 07:03:11,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:11,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:03:11,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:03:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 07:03:12,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-11-09 07:03:12,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 326 transitions, 1258 flow. Second operand has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:12,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:12,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-11-09 07:03:12,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:13,968 INFO L124 PetriNetUnfolderBase]: 2193/7771 cut-off events. [2024-11-09 07:03:13,968 INFO L125 PetriNetUnfolderBase]: For 13462/14318 co-relation queries the response was YES. [2024-11-09 07:03:13,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17981 conditions, 7771 events. 2193/7771 cut-off events. For 13462/14318 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 74199 event pairs, 418 based on Foata normal form. 188/7281 useless extension candidates. Maximal degree in co-relation 17928. Up to 1834 conditions per place. [2024-11-09 07:03:14,024 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 124 selfloop transitions, 57 changer transitions 0/398 dead transitions. [2024-11-09 07:03:14,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 398 transitions, 2201 flow [2024-11-09 07:03:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 07:03:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-09 07:03:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6287 transitions. [2024-11-09 07:03:14,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7615067829457365 [2024-11-09 07:03:14,032 INFO L175 Difference]: Start difference. First operand has 320 places, 326 transitions, 1258 flow. Second operand 24 states and 6287 transitions. [2024-11-09 07:03:14,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 398 transitions, 2201 flow [2024-11-09 07:03:14,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 398 transitions, 2156 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-09 07:03:14,051 INFO L231 Difference]: Finished difference. Result has 325 places, 351 transitions, 1631 flow [2024-11-09 07:03:14,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1631, PETRI_PLACES=325, PETRI_TRANSITIONS=351} [2024-11-09 07:03:14,053 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 10 predicate places. [2024-11-09 07:03:14,053 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 351 transitions, 1631 flow [2024-11-09 07:03:14,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:14,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:14,057 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:14,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:03:14,057 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:14,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:14,057 INFO L85 PathProgramCache]: Analyzing trace with hash 961056649, now seen corresponding path program 1 times [2024-11-09 07:03:14,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:14,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917092290] [2024-11-09 07:03:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917092290] [2024-11-09 07:03:14,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917092290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047361105] [2024-11-09 07:03:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:14,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:14,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:03:14,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:14,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:03:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:14,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:03:14,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:14,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:15,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047361105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:03:15,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:03:15,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-11-09 07:03:15,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994183615] [2024-11-09 07:03:15,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:03:15,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 07:03:15,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 07:03:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:03:16,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-11-09 07:03:16,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 351 transitions, 1631 flow. Second operand has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:16,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:16,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-11-09 07:03:16,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:18,776 INFO L124 PetriNetUnfolderBase]: 3509/12442 cut-off events. [2024-11-09 07:03:18,776 INFO L125 PetriNetUnfolderBase]: For 19649/24009 co-relation queries the response was YES. [2024-11-09 07:03:18,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30260 conditions, 12442 events. 3509/12442 cut-off events. For 19649/24009 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 125566 event pairs, 1294 based on Foata normal form. 332/12017 useless extension candidates. Maximal degree in co-relation 30204. Up to 3344 conditions per place. [2024-11-09 07:03:18,894 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 152 selfloop transitions, 90 changer transitions 0/491 dead transitions. [2024-11-09 07:03:18,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 491 transitions, 2906 flow [2024-11-09 07:03:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:03:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-09 07:03:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6226 transitions. [2024-11-09 07:03:18,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7869059656218402 [2024-11-09 07:03:18,899 INFO L175 Difference]: Start difference. First operand has 325 places, 351 transitions, 1631 flow. Second operand 23 states and 6226 transitions. [2024-11-09 07:03:18,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 491 transitions, 2906 flow [2024-11-09 07:03:18,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 491 transitions, 2785 flow, removed 35 selfloop flow, removed 18 redundant places. [2024-11-09 07:03:18,938 INFO L231 Difference]: Finished difference. Result has 342 places, 411 transitions, 2130 flow [2024-11-09 07:03:18,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1550, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2130, PETRI_PLACES=342, PETRI_TRANSITIONS=411} [2024-11-09 07:03:18,939 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 27 predicate places. [2024-11-09 07:03:18,939 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 411 transitions, 2130 flow [2024-11-09 07:03:18,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:18,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:18,942 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:18,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:03:19,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:19,143 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:19,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:19,144 INFO L85 PathProgramCache]: Analyzing trace with hash -99120851, now seen corresponding path program 1 times [2024-11-09 07:03:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:19,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993380666] [2024-11-09 07:03:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:19,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:19,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:19,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993380666] [2024-11-09 07:03:19,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993380666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:19,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874251181] [2024-11-09 07:03:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:19,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:03:19,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:19,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:03:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:19,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:03:19,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:20,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:20,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874251181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:03:20,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:03:20,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-11-09 07:03:20,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50162564] [2024-11-09 07:03:20,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:03:20,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 07:03:20,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:03:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 07:03:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:03:21,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-11-09 07:03:21,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 411 transitions, 2130 flow. Second operand has 24 states, 24 states have (on average 267.0833333333333) internal successors, (6410), 24 states have internal predecessors, (6410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:21,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:03:21,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-11-09 07:03:21,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:03:24,559 INFO L124 PetriNetUnfolderBase]: 2135/10074 cut-off events. [2024-11-09 07:03:24,559 INFO L125 PetriNetUnfolderBase]: For 20714/20996 co-relation queries the response was YES. [2024-11-09 07:03:24,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26728 conditions, 10074 events. 2135/10074 cut-off events. For 20714/20996 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 97286 event pairs, 709 based on Foata normal form. 80/9770 useless extension candidates. Maximal degree in co-relation 26656. Up to 1606 conditions per place. [2024-11-09 07:03:24,653 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 92 selfloop transitions, 44 changer transitions 148/524 dead transitions. [2024-11-09 07:03:24,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 524 transitions, 3543 flow [2024-11-09 07:03:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:03:24,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-09 07:03:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6238 transitions. [2024-11-09 07:03:24,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.788422649140546 [2024-11-09 07:03:24,658 INFO L175 Difference]: Start difference. First operand has 342 places, 411 transitions, 2130 flow. Second operand 23 states and 6238 transitions. [2024-11-09 07:03:24,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 524 transitions, 3543 flow [2024-11-09 07:03:24,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 524 transitions, 3505 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-09 07:03:24,726 INFO L231 Difference]: Finished difference. Result has 368 places, 363 transitions, 1872 flow [2024-11-09 07:03:24,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=2092, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1872, PETRI_PLACES=368, PETRI_TRANSITIONS=363} [2024-11-09 07:03:24,727 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 53 predicate places. [2024-11-09 07:03:24,727 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 363 transitions, 1872 flow [2024-11-09 07:03:24,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.0833333333333) internal successors, (6410), 24 states have internal predecessors, (6410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:03:24,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:03:24,730 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:24,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:03:24,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 07:03:24,935 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-09 07:03:24,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:24,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1544387834, now seen corresponding path program 2 times [2024-11-09 07:03:24,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:03:24,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067065492] [2024-11-09 07:03:24,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:24,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 07:03:27,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:03:27,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067065492] [2024-11-09 07:03:27,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067065492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:27,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301977363] [2024-11-09 07:03:27,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:03:27,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:27,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:03:27,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:27,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:03:28,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:03:28,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:03:28,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-09 07:03:28,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:28,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 07:03:28,549 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-09 07:03:28,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-09 07:03:29,185 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-09 07:03:29,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-09 07:03:30,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:03:30,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 07:03:30,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-09 07:03:30,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-09 07:03:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:03:30,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:03:30,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:03:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:03:30,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 31 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 138 [2024-11-09 07:03:30,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2024-11-09 07:03:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 07:03:30,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:58,552 INFO L349 Elim1Store]: treesize reduction 1170, result has 8.1 percent of original size [2024-11-09 07:03:58,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 165 [2024-11-09 07:03:58,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-11-09 07:03:58,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:03:58,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 141 [2024-11-09 07:03:58,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:03:58,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 17 [2024-11-09 07:03:58,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:03:58,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 323 [2024-11-09 07:03:58,809 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:03:58,862 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-11-09 07:03:58,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 1 [2024-11-09 07:03:58,868 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:03:58,914 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-11-09 07:03:58,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-11-09 07:03:58,916 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:03:58,959 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-11-09 07:03:58,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-11-09 07:04:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 4 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 07:04:12,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301977363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:04:12,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:04:12,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 35, 18] total 74 [2024-11-09 07:04:12,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714869144] [2024-11-09 07:04:12,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:04:12,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-09 07:04:12,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-09 07:04:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=5155, Unknown=50, NotChecked=0, Total=5550 [2024-11-09 07:04:17,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:04:19,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]