./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc 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/chl-poker-hand-subst.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 6f5429be3277265830db62d0e901249d8c763b3d6d062789dc5a6193a05c0714 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:57:16,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:57:16,317 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:57:16,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:57:16,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:57:16,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:57:16,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:57:16,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:57:16,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:57:16,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:57:16,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:57:16,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:57:16,356 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:57:16,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:57:16,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:57:16,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:57:16,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:57:16,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:57:16,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:57:16,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:57:16,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:57:16,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:57:16,364 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:57:16,364 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:57:16,364 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:57:16,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:57:16,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:57:16,365 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:57:16,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:57:16,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:57:16,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:57:16,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:57:16,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:57:16,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:57:16,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:57:16,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:57:16,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:57:16,368 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:57:16,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:57:16,369 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:57:16,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:57:16,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f5429be3277265830db62d0e901249d8c763b3d6d062789dc5a6193a05c0714 [2024-11-19 05:57:16,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:57:16,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:57:16,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:57:16,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:57:16,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:57:16,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c [2024-11-19 05:57:18,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:57:18,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:57:18,416 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c [2024-11-19 05:57:18,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e532283/0bdc99e03daf438f87590a7f34b2cc13/FLAG5c65fc1e2 [2024-11-19 05:57:18,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e532283/0bdc99e03daf438f87590a7f34b2cc13 [2024-11-19 05:57:18,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:57:18,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:57:18,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:57:18,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:57:18,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:57:18,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:57:18" (1/1) ... [2024-11-19 05:57:18,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4409f06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:18, skipping insertion in model container [2024-11-19 05:57:18,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:57:18" (1/1) ... [2024-11-19 05:57:18,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:57:19,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:57:19,086 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:57:19,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:57:19,242 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:57:19,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19 WrapperNode [2024-11-19 05:57:19,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:57:19,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:57:19,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:57:19,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:57:19,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,496 INFO L138 Inliner]: procedures = 25, calls = 440, calls flagged for inlining = 101, calls inlined = 145, statements flattened = 5008 [2024-11-19 05:57:19,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:57:19,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:57:19,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:57:19,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:57:19,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:57:19,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:57:19,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:57:19,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:57:19,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (1/1) ... [2024-11-19 05:57:19,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:57:19,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:57:19,919 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) [2024-11-19 05:57:19,923 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 [2024-11-19 05:57:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:57:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 05:57:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 05:57:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 05:57:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 05:57:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 05:57:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 05:57:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:57:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:57:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 05:57:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 05:57:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 05:57:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:57:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:57:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:57:20,086 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:57:20,360 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:57:20,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:57:25,256 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:57:25,256 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:57:41,142 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:57:41,142 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-19 05:57:41,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:57:41 BoogieIcfgContainer [2024-11-19 05:57:41,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:57:41,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:57:41,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:57:41,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:57:41,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:57:18" (1/3) ... [2024-11-19 05:57:41,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ea095e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:57:41, skipping insertion in model container [2024-11-19 05:57:41,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:57:19" (2/3) ... [2024-11-19 05:57:41,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ea095e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:57:41, skipping insertion in model container [2024-11-19 05:57:41,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:57:41" (3/3) ... [2024-11-19 05:57:41,151 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2024-11-19 05:57:41,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:57:41,170 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 755 error locations. [2024-11-19 05:57:41,171 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:57:43,715 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:57:43,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1717 places, 1788 transitions, 3597 flow [2024-11-19 05:57:45,435 INFO L124 PetriNetUnfolderBase]: 81/1785 cut-off events. [2024-11-19 05:57:45,435 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 05:57:45,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1798 conditions, 1785 events. 81/1785 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8202 event pairs, 0 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1442. Up to 7 conditions per place. [2024-11-19 05:57:45,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 1717 places, 1788 transitions, 3597 flow [2024-11-19 05:57:45,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1694 places, 1762 transitions, 3542 flow [2024-11-19 05:57:45,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:57:45,574 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;@a9ec259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:57:45,575 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1469 error locations. [2024-11-19 05:57:45,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:57:45,583 INFO L124 PetriNetUnfolderBase]: 3/81 cut-off events. [2024-11-19 05:57:45,584 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:57:45,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:57:45,585 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] [2024-11-19 05:57:45,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1465 more)] === [2024-11-19 05:57:45,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:57:45,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1525396327, now seen corresponding path program 1 times [2024-11-19 05:57:45,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:57:45,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022806869] [2024-11-19 05:57:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:57:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:57:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:57:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:57:47,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:57:47,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022806869] [2024-11-19 05:57:47,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022806869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:57:47,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:57:47,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:57:47,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503908864] [2024-11-19 05:57:47,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:57:47,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:57:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:57:47,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:57:47,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:57:48,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 1788 [2024-11-19 05:57:48,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1694 places, 1762 transitions, 3542 flow. Second operand has 6 states, 6 states have (on average 827.5) internal successors, (4965), 6 states have internal predecessors, (4965), 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) [2024-11-19 05:57:48,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:57:48,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 1788 [2024-11-19 05:57:48,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:57:53,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 05:58:04,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 05:58:09,400 INFO L124 PetriNetUnfolderBase]: 675/2614 cut-off events. [2024-11-19 05:58:09,400 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-19 05:58:09,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3606 conditions, 2614 events. 675/2614 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12706 event pairs, 135 based on Foata normal form. 168/2392 useless extension candidates. Maximal degree in co-relation 2386. Up to 865 conditions per place. [2024-11-19 05:58:09,428 INFO L140 encePairwiseOnDemand]: 963/1788 looper letters, 135 selfloop transitions, 60 changer transitions 24/997 dead transitions. [2024-11-19 05:58:09,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 976 places, 997 transitions, 2402 flow [2024-11-19 05:58:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:58:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:58:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5916 transitions. [2024-11-19 05:58:09,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5514541387024608 [2024-11-19 05:58:09,471 INFO L175 Difference]: Start difference. First operand has 1694 places, 1762 transitions, 3542 flow. Second operand 6 states and 5916 transitions. [2024-11-19 05:58:09,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 976 places, 997 transitions, 2402 flow [2024-11-19 05:58:09,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 970 places, 997 transitions, 2390 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-19 05:58:09,505 INFO L231 Difference]: Finished difference. Result has 970 places, 973 transitions, 2072 flow [2024-11-19 05:58:09,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1788, PETRI_DIFFERENCE_MINUEND_FLOW=2000, PETRI_DIFFERENCE_MINUEND_PLACES=965, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2072, PETRI_PLACES=970, PETRI_TRANSITIONS=973} [2024-11-19 05:58:09,514 INFO L277 CegarLoopForPetriNet]: 1694 programPoint places, -724 predicate places. [2024-11-19 05:58:09,514 INFO L471 AbstractCegarLoop]: Abstraction has has 970 places, 973 transitions, 2072 flow [2024-11-19 05:58:09,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 827.5) internal successors, (4965), 6 states have internal predecessors, (4965), 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) [2024-11-19 05:58:09,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:09,519 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] [2024-11-19 05:58:09,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:58:09,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1465 more)] === [2024-11-19 05:58:09,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 158412691, now seen corresponding path program 1 times [2024-11-19 05:58:09,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:09,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495332535] [2024-11-19 05:58:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:09,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:09,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495332535] [2024-11-19 05:58:09,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495332535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:09,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:09,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:09,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534802311] [2024-11-19 05:58:09,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:09,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:09,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:09,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:09,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:09,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1788 [2024-11-19 05:58:09,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 970 places, 973 transitions, 2072 flow. Second operand has 3 states, 3 states have (on average 988.3333333333334) internal successors, (2965), 3 states have internal predecessors, (2965), 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) [2024-11-19 05:58:09,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:09,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1788 [2024-11-19 05:58:09,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:12,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 05:58:17,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 05:58:22,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 05:58:25,588 INFO L124 PetriNetUnfolderBase]: 675/2589 cut-off events. [2024-11-19 05:58:25,588 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-19 05:58:25,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3446 conditions, 2589 events. 675/2589 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12713 event pairs, 135 based on Foata normal form. 0/2224 useless extension candidates. Maximal degree in co-relation 3263. Up to 772 conditions per place. [2024-11-19 05:58:25,608 INFO L140 encePairwiseOnDemand]: 1785/1788 looper letters, 42 selfloop transitions, 2 changer transitions 0/972 dead transitions. [2024-11-19 05:58:25,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 972 transitions, 2158 flow [2024-11-19 05:58:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:25,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3006 transitions. [2024-11-19 05:58:25,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5604026845637584 [2024-11-19 05:58:25,616 INFO L175 Difference]: Start difference. First operand has 970 places, 973 transitions, 2072 flow. Second operand 3 states and 3006 transitions. [2024-11-19 05:58:25,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 972 transitions, 2158 flow [2024-11-19 05:58:25,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 942 places, 972 transitions, 2038 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:58:25,632 INFO L231 Difference]: Finished difference. Result has 942 places, 972 transitions, 1954 flow [2024-11-19 05:58:25,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1788, PETRI_DIFFERENCE_MINUEND_FLOW=1950, PETRI_DIFFERENCE_MINUEND_PLACES=940, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1954, PETRI_PLACES=942, PETRI_TRANSITIONS=972} [2024-11-19 05:58:25,634 INFO L277 CegarLoopForPetriNet]: 1694 programPoint places, -752 predicate places. [2024-11-19 05:58:25,634 INFO L471 AbstractCegarLoop]: Abstraction has has 942 places, 972 transitions, 1954 flow [2024-11-19 05:58:25,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 988.3333333333334) internal successors, (2965), 3 states have internal predecessors, (2965), 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) [2024-11-19 05:58:25,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:25,637 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] [2024-11-19 05:58:25,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:58:25,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1465 more)] === [2024-11-19 05:58:25,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:25,639 INFO L85 PathProgramCache]: Analyzing trace with hash 716177378, now seen corresponding path program 1 times [2024-11-19 05:58:25,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:25,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745046211] [2024-11-19 05:58:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:25,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:25,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:25,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745046211] [2024-11-19 05:58:25,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745046211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:25,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:25,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:25,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736744969] [2024-11-19 05:58:25,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:25,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:25,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:25,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:25,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:25,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1788 [2024-11-19 05:58:25,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 942 places, 972 transitions, 1954 flow. Second operand has 3 states, 3 states have (on average 988.3333333333334) internal successors, (2965), 3 states have internal predecessors, (2965), 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) [2024-11-19 05:58:25,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:25,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1788 [2024-11-19 05:58:25,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:29,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 05:58:31,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []