./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da100b5cb95d7325be7357bb16aa7526e66fa3d3a90ac0a0850ac9736c0f81ee --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:43:15,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:43:15,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:43:15,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:43:15,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:43:15,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:43:15,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:43:15,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:43:15,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:43:15,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:43:15,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:43:15,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:43:15,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:43:15,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:43:15,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:43:15,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:43:15,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:43:15,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:43:15,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:43:15,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:43:15,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:43:15,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:43:15,430 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:43:15,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:43:15,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:43:15,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:43:15,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:43:15,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:43:15,432 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:43:15,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:43:15,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:43:15,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:43:15,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:43:15,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:43:15,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:43:15,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:43:15,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:43:15,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:43:15,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:43:15,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:43:15,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:43:15,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da100b5cb95d7325be7357bb16aa7526e66fa3d3a90ac0a0850ac9736c0f81ee [2024-11-10 14:43:15,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:43:15,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:43:15,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:43:15,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:43:15,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:43:15,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i [2024-11-10 14:43:17,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:43:17,437 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:43:17,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i [2024-11-10 14:43:17,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f551ffbe/aa0a06aa87744cceac679d098f50aa41/FLAG703419242 [2024-11-10 14:43:17,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f551ffbe/aa0a06aa87744cceac679d098f50aa41 [2024-11-10 14:43:17,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:43:17,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:43:17,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:43:17,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:43:17,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:43:17,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:17" (1/1) ... [2024-11-10 14:43:17,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d53faad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17, skipping insertion in model container [2024-11-10 14:43:17,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:17" (1/1) ... [2024-11-10 14:43:17,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:43:18,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:43:18,013 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:43:18,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:43:18,110 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:43:18,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18 WrapperNode [2024-11-10 14:43:18,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:43:18,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:43:18,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:43:18,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:43:18,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,166 INFO L138 Inliner]: procedures = 263, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-11-10 14:43:18,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:43:18,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:43:18,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:43:18,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:43:18,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,191 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:43:18,199 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:43:18,199 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:43:18,199 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:43:18,200 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (1/1) ... [2024-11-10 14:43:18,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:43:18,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:18,240 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) [2024-11-10 14:43:18,242 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 [2024-11-10 14:43:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:43:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:43:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:43:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:43:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:43:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:43:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-10 14:43:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-10 14:43:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:43:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:43:18,294 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:43:18,457 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:43:18,459 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:43:18,722 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:43:18,722 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:43:18,743 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:43:18,744 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:43:18,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:18 BoogieIcfgContainer [2024-11-10 14:43:18,744 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:43:18,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:43:18,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:43:18,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:43:18,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:43:17" (1/3) ... [2024-11-10 14:43:18,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ad2869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:18, skipping insertion in model container [2024-11-10 14:43:18,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:18" (2/3) ... [2024-11-10 14:43:18,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ad2869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:18, skipping insertion in model container [2024-11-10 14:43:18,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:18" (3/3) ... [2024-11-10 14:43:18,754 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid.i [2024-11-10 14:43:18,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:43:18,773 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 14:43:18,773 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:43:18,835 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:43:18,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 112 transitions, 231 flow [2024-11-10 14:43:18,942 INFO L124 PetriNetUnfolderBase]: 6/164 cut-off events. [2024-11-10 14:43:18,944 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:43:18,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 164 events. 6/164 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 75. Up to 4 conditions per place. [2024-11-10 14:43:18,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 112 transitions, 231 flow [2024-11-10 14:43:18,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 112 transitions, 231 flow [2024-11-10 14:43:18,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:18,969 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;@7a4f7fa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:18,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 14:43:18,985 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:18,986 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-11-10 14:43:18,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:18,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:18,988 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] [2024-11-10 14:43:18,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:18,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:18,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1410419924, now seen corresponding path program 1 times [2024-11-10 14:43:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882460281] [2024-11-10 14:43:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:19,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:19,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882460281] [2024-11-10 14:43:19,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882460281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:19,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:19,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:19,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143281178] [2024-11-10 14:43:19,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:19,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:43:19,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:43:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:43:19,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 112 [2024-11-10 14:43:19,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 112 transitions, 231 flow. Second operand has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2024-11-10 14:43:19,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:19,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 112 [2024-11-10 14:43:19,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:19,340 INFO L124 PetriNetUnfolderBase]: 1/159 cut-off events. [2024-11-10 14:43:19,340 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:43:19,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 159 events. 1/159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 218 event pairs, 0 based on Foata normal form. 5/149 useless extension candidates. Maximal degree in co-relation 14. Up to 3 conditions per place. [2024-11-10 14:43:19,342 INFO L140 encePairwiseOnDemand]: 109/112 looper letters, 2 selfloop transitions, 0 changer transitions 1/109 dead transitions. [2024-11-10 14:43:19,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 229 flow [2024-11-10 14:43:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:43:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:43:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 219 transitions. [2024-11-10 14:43:19,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9776785714285714 [2024-11-10 14:43:19,361 INFO L175 Difference]: Start difference. First operand has 111 places, 112 transitions, 231 flow. Second operand 2 states and 219 transitions. [2024-11-10 14:43:19,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 229 flow [2024-11-10 14:43:19,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:19,371 INFO L231 Difference]: Finished difference. Result has 112 places, 108 transitions, 223 flow [2024-11-10 14:43:19,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=223, PETRI_PLACES=112, PETRI_TRANSITIONS=108} [2024-11-10 14:43:19,407 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2024-11-10 14:43:19,407 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 108 transitions, 223 flow [2024-11-10 14:43:19,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2024-11-10 14:43:19,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:19,409 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] [2024-11-10 14:43:19,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:43:19,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:19,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:19,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1635376169, now seen corresponding path program 1 times [2024-11-10 14:43:19,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:19,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811725921] [2024-11-10 14:43:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:19,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:19,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:19,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811725921] [2024-11-10 14:43:19,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811725921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:19,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:19,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503293920] [2024-11-10 14:43:19,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:19,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:19,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:20,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2024-11-10 14:43:20,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 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) [2024-11-10 14:43:20,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:20,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2024-11-10 14:43:20,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:20,542 INFO L124 PetriNetUnfolderBase]: 80/453 cut-off events. [2024-11-10 14:43:20,543 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 14:43:20,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 453 events. 80/453 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2190 event pairs, 44 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 674. Up to 174 conditions per place. [2024-11-10 14:43:20,546 INFO L140 encePairwiseOnDemand]: 96/112 looper letters, 30 selfloop transitions, 26 changer transitions 0/132 dead transitions. [2024-11-10 14:43:20,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 132 transitions, 386 flow [2024-11-10 14:43:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2024-11-10 14:43:20,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7738095238095238 [2024-11-10 14:43:20,551 INFO L175 Difference]: Start difference. First operand has 112 places, 108 transitions, 223 flow. Second operand 6 states and 520 transitions. [2024-11-10 14:43:20,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 132 transitions, 386 flow [2024-11-10 14:43:20,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 132 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:20,557 INFO L231 Difference]: Finished difference. Result has 120 places, 131 transitions, 399 flow [2024-11-10 14:43:20,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=120, PETRI_TRANSITIONS=131} [2024-11-10 14:43:20,559 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 9 predicate places. [2024-11-10 14:43:20,559 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 131 transitions, 399 flow [2024-11-10 14:43:20,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 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) [2024-11-10 14:43:20,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:20,559 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] [2024-11-10 14:43:20,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:43:20,560 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:20,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:20,561 INFO L85 PathProgramCache]: Analyzing trace with hash -127250069, now seen corresponding path program 1 times [2024-11-10 14:43:20,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:20,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623003830] [2024-11-10 14:43:20,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:20,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:20,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623003830] [2024-11-10 14:43:20,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623003830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:20,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:20,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:20,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799358338] [2024-11-10 14:43:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:20,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:20,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:20,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:20,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:21,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 112 [2024-11-10 14:43:21,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 131 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2024-11-10 14:43:21,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:21,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 112 [2024-11-10 14:43:21,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:21,278 INFO L124 PetriNetUnfolderBase]: 135/625 cut-off events. [2024-11-10 14:43:21,279 INFO L125 PetriNetUnfolderBase]: For 144/156 co-relation queries the response was YES. [2024-11-10 14:43:21,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 625 events. 135/625 cut-off events. For 144/156 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3363 event pairs, 52 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 1236. Up to 305 conditions per place. [2024-11-10 14:43:21,286 INFO L140 encePairwiseOnDemand]: 101/112 looper letters, 58 selfloop transitions, 22 changer transitions 0/152 dead transitions. [2024-11-10 14:43:21,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 152 transitions, 633 flow [2024-11-10 14:43:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:21,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2024-11-10 14:43:21,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2024-11-10 14:43:21,290 INFO L175 Difference]: Start difference. First operand has 120 places, 131 transitions, 399 flow. Second operand 6 states and 496 transitions. [2024-11-10 14:43:21,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 152 transitions, 633 flow [2024-11-10 14:43:21,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 152 transitions, 633 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:21,298 INFO L231 Difference]: Finished difference. Result has 130 places, 152 transitions, 581 flow [2024-11-10 14:43:21,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=581, PETRI_PLACES=130, PETRI_TRANSITIONS=152} [2024-11-10 14:43:21,299 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 19 predicate places. [2024-11-10 14:43:21,299 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 152 transitions, 581 flow [2024-11-10 14:43:21,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2024-11-10 14:43:21,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:21,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:21,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:43:21,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:21,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:21,301 INFO L85 PathProgramCache]: Analyzing trace with hash 40018932, now seen corresponding path program 1 times [2024-11-10 14:43:21,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:21,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528698073] [2024-11-10 14:43:21,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:21,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:21,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528698073] [2024-11-10 14:43:21,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528698073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:21,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:21,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:21,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658498886] [2024-11-10 14:43:21,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:21,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:43:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:43:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:43:21,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 112 [2024-11-10 14:43:21,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 152 transitions, 581 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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) [2024-11-10 14:43:21,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:21,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 112 [2024-11-10 14:43:21,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:21,568 INFO L124 PetriNetUnfolderBase]: 69/421 cut-off events. [2024-11-10 14:43:21,568 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-11-10 14:43:21,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 421 events. 69/421 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1869 event pairs, 4 based on Foata normal form. 1/394 useless extension candidates. Maximal degree in co-relation 803. Up to 77 conditions per place. [2024-11-10 14:43:21,572 INFO L140 encePairwiseOnDemand]: 104/112 looper letters, 11 selfloop transitions, 2 changer transitions 5/157 dead transitions. [2024-11-10 14:43:21,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 157 transitions, 627 flow [2024-11-10 14:43:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2024-11-10 14:43:21,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8854166666666666 [2024-11-10 14:43:21,574 INFO L175 Difference]: Start difference. First operand has 130 places, 152 transitions, 581 flow. Second operand 6 states and 595 transitions. [2024-11-10 14:43:21,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 157 transitions, 627 flow [2024-11-10 14:43:21,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 157 transitions, 595 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:21,582 INFO L231 Difference]: Finished difference. Result has 139 places, 152 transitions, 567 flow [2024-11-10 14:43:21,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=567, PETRI_PLACES=139, PETRI_TRANSITIONS=152} [2024-11-10 14:43:21,583 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 28 predicate places. [2024-11-10 14:43:21,583 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 152 transitions, 567 flow [2024-11-10 14:43:21,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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) [2024-11-10 14:43:21,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:21,584 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] [2024-11-10 14:43:21,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:43:21,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:21,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:21,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1341497877, now seen corresponding path program 1 times [2024-11-10 14:43:21,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:21,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887242764] [2024-11-10 14:43:21,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:21,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:21,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:21,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887242764] [2024-11-10 14:43:21,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887242764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:21,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:21,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:21,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678765995] [2024-11-10 14:43:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:21,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:21,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:21,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:21,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:22,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 112 [2024-11-10 14:43:22,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 152 transitions, 567 flow. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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) [2024-11-10 14:43:22,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:22,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 112 [2024-11-10 14:43:22,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:22,230 INFO L124 PetriNetUnfolderBase]: 153/689 cut-off events. [2024-11-10 14:43:22,231 INFO L125 PetriNetUnfolderBase]: For 272/290 co-relation queries the response was YES. [2024-11-10 14:43:22,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 689 events. 153/689 cut-off events. For 272/290 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3768 event pairs, 39 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 1596. Up to 332 conditions per place. [2024-11-10 14:43:22,236 INFO L140 encePairwiseOnDemand]: 101/112 looper letters, 75 selfloop transitions, 22 changer transitions 0/173 dead transitions. [2024-11-10 14:43:22,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 173 transitions, 867 flow [2024-11-10 14:43:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2024-11-10 14:43:22,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7529761904761905 [2024-11-10 14:43:22,238 INFO L175 Difference]: Start difference. First operand has 139 places, 152 transitions, 567 flow. Second operand 6 states and 506 transitions. [2024-11-10 14:43:22,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 173 transitions, 867 flow [2024-11-10 14:43:22,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 173 transitions, 853 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:22,249 INFO L231 Difference]: Finished difference. Result has 141 places, 173 transitions, 767 flow [2024-11-10 14:43:22,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=767, PETRI_PLACES=141, PETRI_TRANSITIONS=173} [2024-11-10 14:43:22,252 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 30 predicate places. [2024-11-10 14:43:22,252 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 173 transitions, 767 flow [2024-11-10 14:43:22,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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) [2024-11-10 14:43:22,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:22,254 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] [2024-11-10 14:43:22,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:43:22,254 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:22,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:22,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1107126455, now seen corresponding path program 1 times [2024-11-10 14:43:22,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:22,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618439602] [2024-11-10 14:43:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:22,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:22,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:22,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618439602] [2024-11-10 14:43:22,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618439602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:22,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:22,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:22,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54463904] [2024-11-10 14:43:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:22,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:22,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:22,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:22,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:22,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2024-11-10 14:43:22,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 173 transitions, 767 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2024-11-10 14:43:22,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:22,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2024-11-10 14:43:22,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:22,980 INFO L124 PetriNetUnfolderBase]: 343/1108 cut-off events. [2024-11-10 14:43:22,981 INFO L125 PetriNetUnfolderBase]: For 725/795 co-relation queries the response was YES. [2024-11-10 14:43:22,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3009 conditions, 1108 events. 343/1108 cut-off events. For 725/795 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 6785 event pairs, 66 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 2989. Up to 603 conditions per place. [2024-11-10 14:43:22,990 INFO L140 encePairwiseOnDemand]: 89/112 looper letters, 79 selfloop transitions, 100 changer transitions 7/260 dead transitions. [2024-11-10 14:43:22,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 260 transitions, 1521 flow [2024-11-10 14:43:22,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 569 transitions. [2024-11-10 14:43:22,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8467261904761905 [2024-11-10 14:43:22,993 INFO L175 Difference]: Start difference. First operand has 141 places, 173 transitions, 767 flow. Second operand 6 states and 569 transitions. [2024-11-10 14:43:22,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 260 transitions, 1521 flow [2024-11-10 14:43:22,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 260 transitions, 1445 flow, removed 38 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:23,003 INFO L231 Difference]: Finished difference. Result has 151 places, 253 transitions, 1553 flow [2024-11-10 14:43:23,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1553, PETRI_PLACES=151, PETRI_TRANSITIONS=253} [2024-11-10 14:43:23,006 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 40 predicate places. [2024-11-10 14:43:23,007 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 253 transitions, 1553 flow [2024-11-10 14:43:23,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2024-11-10 14:43:23,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:23,007 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-10 14:43:23,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:43:23,008 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:23,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:23,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1755047523, now seen corresponding path program 1 times [2024-11-10 14:43:23,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:23,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733169805] [2024-11-10 14:43:23,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:23,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:23,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:43:23,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:23,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733169805] [2024-11-10 14:43:23,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733169805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:23,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:23,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:23,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055833518] [2024-11-10 14:43:23,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:23,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:23,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:23,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:23,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:23,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 112 [2024-11-10 14:43:23,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 253 transitions, 1553 flow. Second operand has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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) [2024-11-10 14:43:23,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:23,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 112 [2024-11-10 14:43:23,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:23,787 INFO L124 PetriNetUnfolderBase]: 327/1074 cut-off events. [2024-11-10 14:43:23,787 INFO L125 PetriNetUnfolderBase]: For 1700/1834 co-relation queries the response was YES. [2024-11-10 14:43:23,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3736 conditions, 1074 events. 327/1074 cut-off events. For 1700/1834 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6748 event pairs, 21 based on Foata normal form. 0/1060 useless extension candidates. Maximal degree in co-relation 3711. Up to 438 conditions per place. [2024-11-10 14:43:23,795 INFO L140 encePairwiseOnDemand]: 101/112 looper letters, 136 selfloop transitions, 37 changer transitions 29/293 dead transitions. [2024-11-10 14:43:23,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 293 transitions, 2250 flow [2024-11-10 14:43:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:23,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-11-10 14:43:23,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8273809523809523 [2024-11-10 14:43:23,798 INFO L175 Difference]: Start difference. First operand has 151 places, 253 transitions, 1553 flow. Second operand 6 states and 556 transitions. [2024-11-10 14:43:23,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 293 transitions, 2250 flow [2024-11-10 14:43:23,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 293 transitions, 2196 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:23,819 INFO L231 Difference]: Finished difference. Result has 154 places, 264 transitions, 1856 flow [2024-11-10 14:43:23,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1499, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1856, PETRI_PLACES=154, PETRI_TRANSITIONS=264} [2024-11-10 14:43:23,820 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 43 predicate places. [2024-11-10 14:43:23,820 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 264 transitions, 1856 flow [2024-11-10 14:43:23,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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) [2024-11-10 14:43:23,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:23,821 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-10 14:43:23,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:43:23,822 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-10 14:43:23,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1609601888, now seen corresponding path program 1 times [2024-11-10 14:43:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:23,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101459289] [2024-11-10 14:43:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:23,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:24,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:24,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101459289] [2024-11-10 14:43:24,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101459289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:43:24,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698128255] [2024-11-10 14:43:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:24,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:43:24,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:43:24,490 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) [2024-11-10 14:43:24,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:43:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:24,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-10 14:43:24,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:43:24,690 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 [2024-11-10 14:43:24,813 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 14:43:24,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-10 14:43:25,253 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:43:25,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:43:25,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:43:25,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:43:25,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 60 [2024-11-10 14:43:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:25,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:44:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:44:14,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698128255] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:44:14,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:44:14,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 16] total 42 [2024-11-10 14:44:14,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318990139] [2024-11-10 14:44:14,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:44:14,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-10 14:44:14,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:44:14,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-10 14:44:14,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1564, Unknown=9, NotChecked=0, Total=1806 [2024-11-10 14:44:19,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:23,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:27,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:32,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:36,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:40,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:45,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:49,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-10 14:44:53,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]