/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:01:17,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:01:17,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 09:01:17,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:01:17,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:01:17,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:01:17,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:01:17,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:01:17,322 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:01:17,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:01:17,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:01:17,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:01:17,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:01:17,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:01:17,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:01:17,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:01:17,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:01:17,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:01:17,327 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:01:17,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:01:17,327 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:01:17,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:01:17,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:01:17,328 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:01:17,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:01:17,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:01:17,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:01:17,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:01:17,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:01:17,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:01:17,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:01:17,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:01:17,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:01:17,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:01:17,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:01:17,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:01:17,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:01:17,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:01:17,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:01:17,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2023-11-30 09:01:18,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:01:18,628 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:01:18,628 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2023-11-30 09:01:18,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf6a3dff/261c95a18d19481e8016759730ee23a6/FLAGd4052095e [2023-11-30 09:01:18,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf6a3dff/261c95a18d19481e8016759730ee23a6 [2023-11-30 09:01:18,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:01:18,644 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:01:18,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:01:18,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:01:18,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:01:18,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30dfd55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18, skipping insertion in model container [2023-11-30 09:01:18,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:01:18,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:01:18,791 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:01:18,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:01:18,830 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:01:18,830 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:01:18,835 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:01:18,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18 WrapperNode [2023-11-30 09:01:18,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:01:18,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:01:18,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:01:18,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:01:18,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,878 INFO L138 Inliner]: procedures = 21, calls = 49, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 131 [2023-11-30 09:01:18,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:01:18,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:01:18,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:01:18,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:01:18,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:01:18,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:01:18,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:01:18,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:01:18,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (1/1) ... [2023-11-30 09:01:18,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:01:18,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:18,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 09:01:18,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 09:01:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:01:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:01:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:01:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:01:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:01:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:01:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:01:18,959 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 09:01:19,043 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:01:19,049 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:01:19,265 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:01:19,315 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:01:19,315 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 09:01:19,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:01:19 BoogieIcfgContainer [2023-11-30 09:01:19,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:01:19,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:01:19,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:01:19,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:01:19,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:01:18" (1/3) ... [2023-11-30 09:01:19,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542e625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:01:19, skipping insertion in model container [2023-11-30 09:01:19,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:18" (2/3) ... [2023-11-30 09:01:19,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542e625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:01:19, skipping insertion in model container [2023-11-30 09:01:19,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:01:19" (3/3) ... [2023-11-30 09:01:19,325 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2023-11-30 09:01:19,340 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:01:19,340 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 09:01:19,340 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:01:19,379 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 09:01:19,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 320 flow [2023-11-30 09:01:19,448 INFO L124 PetriNetUnfolderBase]: 9/151 cut-off events. [2023-11-30 09:01:19,449 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 09:01:19,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 151 events. 9/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2023-11-30 09:01:19,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 320 flow [2023-11-30 09:01:19,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 129 transitions, 267 flow [2023-11-30 09:01:19,461 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:01:19,465 INFO L362 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, mHoare=true, 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;@ac0567a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:01:19,465 INFO L363 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-30 09:01:19,479 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:01:19,480 INFO L124 PetriNetUnfolderBase]: 6/90 cut-off events. [2023-11-30 09:01:19,480 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:01:19,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:19,481 INFO L232 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] [2023-11-30 09:01:19,481 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:19,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1383056228, now seen corresponding path program 1 times [2023-11-30 09:01:19,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:19,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206665163] [2023-11-30 09:01:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:19,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:19,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:19,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206665163] [2023-11-30 09:01:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206665163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:19,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:19,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:01:19,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97551203] [2023-11-30 09:01:19,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:19,829 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:01:19,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:19,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:01:19,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:01:19,857 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 153 [2023-11-30 09:01:19,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 129 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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) [2023-11-30 09:01:19,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:19,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 153 [2023-11-30 09:01:19,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:19,976 INFO L124 PetriNetUnfolderBase]: 75/314 cut-off events. [2023-11-30 09:01:19,976 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-30 09:01:19,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 314 events. 75/314 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1174 event pairs, 62 based on Foata normal form. 6/227 useless extension candidates. Maximal degree in co-relation 345. Up to 146 conditions per place. [2023-11-30 09:01:19,981 INFO L140 encePairwiseOnDemand]: 143/153 looper letters, 21 selfloop transitions, 3 changer transitions 6/122 dead transitions. [2023-11-30 09:01:19,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 122 transitions, 301 flow [2023-11-30 09:01:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:01:19,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:01:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 503 transitions. [2023-11-30 09:01:19,996 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8218954248366013 [2023-11-30 09:01:19,997 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 503 transitions. [2023-11-30 09:01:19,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 503 transitions. [2023-11-30 09:01:20,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:20,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 503 transitions. [2023-11-30 09:01:20,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.75) internal successors, (503), 4 states have internal predecessors, (503), 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) [2023-11-30 09:01:20,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 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) [2023-11-30 09:01:20,010 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 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) [2023-11-30 09:01:20,016 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 2 predicate places. [2023-11-30 09:01:20,016 INFO L500 AbstractCegarLoop]: Abstraction has has 130 places, 122 transitions, 301 flow [2023-11-30 09:01:20,017 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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) [2023-11-30 09:01:20,017 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:20,017 INFO L232 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] [2023-11-30 09:01:20,017 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 09:01:20,017 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:20,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1383056227, now seen corresponding path program 1 times [2023-11-30 09:01:20,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:20,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050132509] [2023-11-30 09:01:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:20,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:20,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:20,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050132509] [2023-11-30 09:01:20,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050132509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:20,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:20,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 09:01:20,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740754107] [2023-11-30 09:01:20,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:20,244 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:01:20,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:20,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:01:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:01:20,246 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2023-11-30 09:01:20,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 122 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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) [2023-11-30 09:01:20,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:20,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2023-11-30 09:01:20,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:20,370 INFO L124 PetriNetUnfolderBase]: 69/307 cut-off events. [2023-11-30 09:01:20,370 INFO L125 PetriNetUnfolderBase]: For 88/158 co-relation queries the response was YES. [2023-11-30 09:01:20,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 307 events. 69/307 cut-off events. For 88/158 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1104 event pairs, 49 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 428. Up to 136 conditions per place. [2023-11-30 09:01:20,374 INFO L140 encePairwiseOnDemand]: 144/153 looper letters, 53 selfloop transitions, 5 changer transitions 6/125 dead transitions. [2023-11-30 09:01:20,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 125 transitions, 444 flow [2023-11-30 09:01:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 09:01:20,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 09:01:20,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 517 transitions. [2023-11-30 09:01:20,376 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5631808278867102 [2023-11-30 09:01:20,376 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 517 transitions. [2023-11-30 09:01:20,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 517 transitions. [2023-11-30 09:01:20,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:20,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 517 transitions. [2023-11-30 09:01:20,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2023-11-30 09:01:20,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 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) [2023-11-30 09:01:20,380 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 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) [2023-11-30 09:01:20,380 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 7 predicate places. [2023-11-30 09:01:20,380 INFO L500 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 444 flow [2023-11-30 09:01:20,381 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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) [2023-11-30 09:01:20,381 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:20,381 INFO L232 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] [2023-11-30 09:01:20,381 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 09:01:20,381 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:20,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash 74930377, now seen corresponding path program 1 times [2023-11-30 09:01:20,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777176864] [2023-11-30 09:01:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777176864] [2023-11-30 09:01:20,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777176864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:20,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:20,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:01:20,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916473348] [2023-11-30 09:01:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:20,551 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:01:20,554 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2023-11-30 09:01:20,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2023-11-30 09:01:20,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:20,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2023-11-30 09:01:20,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:20,673 INFO L124 PetriNetUnfolderBase]: 57/309 cut-off events. [2023-11-30 09:01:20,673 INFO L125 PetriNetUnfolderBase]: For 182/282 co-relation queries the response was YES. [2023-11-30 09:01:20,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 309 events. 57/309 cut-off events. For 182/282 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1210 event pairs, 20 based on Foata normal form. 3/241 useless extension candidates. Maximal degree in co-relation 517. Up to 132 conditions per place. [2023-11-30 09:01:20,675 INFO L140 encePairwiseOnDemand]: 138/153 looper letters, 59 selfloop transitions, 12 changer transitions 6/138 dead transitions. [2023-11-30 09:01:20,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 138 transitions, 682 flow [2023-11-30 09:01:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:01:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:01:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 605 transitions. [2023-11-30 09:01:20,677 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5648926237161531 [2023-11-30 09:01:20,677 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 605 transitions. [2023-11-30 09:01:20,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 605 transitions. [2023-11-30 09:01:20,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:20,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 605 transitions. [2023-11-30 09:01:20,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 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) [2023-11-30 09:01:20,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 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) [2023-11-30 09:01:20,681 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 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) [2023-11-30 09:01:20,682 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 13 predicate places. [2023-11-30 09:01:20,682 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 682 flow [2023-11-30 09:01:20,682 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2023-11-30 09:01:20,682 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:20,682 INFO L232 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] [2023-11-30 09:01:20,683 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 09:01:20,683 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:20,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash 74930378, now seen corresponding path program 1 times [2023-11-30 09:01:20,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:20,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688182054] [2023-11-30 09:01:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:20,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:20,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:20,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688182054] [2023-11-30 09:01:20,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688182054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:20,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:20,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 09:01:20,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933517055] [2023-11-30 09:01:20,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:20,780 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:01:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:20,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:01:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:01:20,786 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 153 [2023-11-30 09:01:20,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 682 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2023-11-30 09:01:20,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:20,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 153 [2023-11-30 09:01:20,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:20,846 INFO L124 PetriNetUnfolderBase]: 41/240 cut-off events. [2023-11-30 09:01:20,846 INFO L125 PetriNetUnfolderBase]: For 226/308 co-relation queries the response was YES. [2023-11-30 09:01:20,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 240 events. 41/240 cut-off events. For 226/308 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 675 event pairs, 17 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 409. Up to 88 conditions per place. [2023-11-30 09:01:20,848 INFO L140 encePairwiseOnDemand]: 147/153 looper letters, 27 selfloop transitions, 3 changer transitions 6/128 dead transitions. [2023-11-30 09:01:20,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 128 transitions, 659 flow [2023-11-30 09:01:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:01:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:01:20,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2023-11-30 09:01:20,850 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8104575163398693 [2023-11-30 09:01:20,850 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 496 transitions. [2023-11-30 09:01:20,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 496 transitions. [2023-11-30 09:01:20,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:20,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 496 transitions. [2023-11-30 09:01:20,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-11-30 09:01:20,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 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) [2023-11-30 09:01:20,853 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 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) [2023-11-30 09:01:20,854 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 13 predicate places. [2023-11-30 09:01:20,854 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 659 flow [2023-11-30 09:01:20,855 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2023-11-30 09:01:20,855 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:20,855 INFO L232 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] [2023-11-30 09:01:20,855 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 09:01:20,855 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:20,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash 259126924, now seen corresponding path program 1 times [2023-11-30 09:01:20,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:20,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779440714] [2023-11-30 09:01:20,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:20,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:20,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779440714] [2023-11-30 09:01:20,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779440714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:20,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:20,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:01:20,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828218988] [2023-11-30 09:01:20,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:20,964 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:20,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:20,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:20,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:01:20,966 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2023-11-30 09:01:20,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 659 flow. Second operand has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2023-11-30 09:01:20,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:20,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2023-11-30 09:01:20,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:21,070 INFO L124 PetriNetUnfolderBase]: 41/239 cut-off events. [2023-11-30 09:01:21,071 INFO L125 PetriNetUnfolderBase]: For 354/506 co-relation queries the response was YES. [2023-11-30 09:01:21,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 239 events. 41/239 cut-off events. For 354/506 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 664 event pairs, 16 based on Foata normal form. 8/208 useless extension candidates. Maximal degree in co-relation 470. Up to 87 conditions per place. [2023-11-30 09:01:21,073 INFO L140 encePairwiseOnDemand]: 140/153 looper letters, 52 selfloop transitions, 13 changer transitions 6/132 dead transitions. [2023-11-30 09:01:21,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 132 transitions, 841 flow [2023-11-30 09:01:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:01:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:01:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 596 transitions. [2023-11-30 09:01:21,075 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5564892623716153 [2023-11-30 09:01:21,075 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 596 transitions. [2023-11-30 09:01:21,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 596 transitions. [2023-11-30 09:01:21,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:21,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 596 transitions. [2023-11-30 09:01:21,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.14285714285714) internal successors, (596), 7 states have internal predecessors, (596), 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) [2023-11-30 09:01:21,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 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) [2023-11-30 09:01:21,079 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 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) [2023-11-30 09:01:21,080 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 19 predicate places. [2023-11-30 09:01:21,080 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 132 transitions, 841 flow [2023-11-30 09:01:21,080 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2023-11-30 09:01:21,081 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:21,081 INFO L232 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] [2023-11-30 09:01:21,081 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 09:01:21,081 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:21,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:21,082 INFO L85 PathProgramCache]: Analyzing trace with hash -557000085, now seen corresponding path program 1 times [2023-11-30 09:01:21,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:21,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569667600] [2023-11-30 09:01:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:21,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:21,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:21,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569667600] [2023-11-30 09:01:21,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569667600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:21,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:21,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 09:01:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935807423] [2023-11-30 09:01:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:21,139 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:01:21,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:21,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:01:21,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:01:21,140 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 153 [2023-11-30 09:01:21,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 132 transitions, 841 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2023-11-30 09:01:21,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:21,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 153 [2023-11-30 09:01:21,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:21,203 INFO L124 PetriNetUnfolderBase]: 44/238 cut-off events. [2023-11-30 09:01:21,203 INFO L125 PetriNetUnfolderBase]: For 471/591 co-relation queries the response was YES. [2023-11-30 09:01:21,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 238 events. 44/238 cut-off events. For 471/591 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 619 event pairs, 17 based on Foata normal form. 3/204 useless extension candidates. Maximal degree in co-relation 529. Up to 86 conditions per place. [2023-11-30 09:01:21,204 INFO L140 encePairwiseOnDemand]: 143/153 looper letters, 21 selfloop transitions, 13 changer transitions 6/132 dead transitions. [2023-11-30 09:01:21,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 132 transitions, 909 flow [2023-11-30 09:01:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 09:01:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 09:01:21,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2023-11-30 09:01:21,206 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8028322440087146 [2023-11-30 09:01:21,206 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2023-11-30 09:01:21,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2023-11-30 09:01:21,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:21,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2023-11-30 09:01:21,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 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) [2023-11-30 09:01:21,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 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) [2023-11-30 09:01:21,209 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 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) [2023-11-30 09:01:21,211 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 23 predicate places. [2023-11-30 09:01:21,211 INFO L500 AbstractCegarLoop]: Abstraction has has 151 places, 132 transitions, 909 flow [2023-11-30 09:01:21,211 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2023-11-30 09:01:21,211 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:21,211 INFO L232 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] [2023-11-30 09:01:21,212 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 09:01:21,212 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:21,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:21,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1603493769, now seen corresponding path program 1 times [2023-11-30 09:01:21,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:21,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399067453] [2023-11-30 09:01:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:21,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:21,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399067453] [2023-11-30 09:01:21,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399067453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:21,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:21,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 09:01:21,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949152480] [2023-11-30 09:01:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:21,333 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 09:01:21,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:21,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 09:01:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 09:01:21,334 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2023-11-30 09:01:21,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 132 transitions, 909 flow. Second operand has 7 states, 7 states have (on average 81.14285714285714) internal successors, (568), 7 states have internal predecessors, (568), 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) [2023-11-30 09:01:21,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:21,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2023-11-30 09:01:21,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:21,404 INFO L124 PetriNetUnfolderBase]: 36/207 cut-off events. [2023-11-30 09:01:21,404 INFO L125 PetriNetUnfolderBase]: For 445/527 co-relation queries the response was YES. [2023-11-30 09:01:21,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 207 events. 36/207 cut-off events. For 445/527 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 455 event pairs, 2 based on Foata normal form. 8/191 useless extension candidates. Maximal degree in co-relation 506. Up to 75 conditions per place. [2023-11-30 09:01:21,406 INFO L140 encePairwiseOnDemand]: 140/153 looper letters, 53 selfloop transitions, 15 changer transitions 6/135 dead transitions. [2023-11-30 09:01:21,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 135 transitions, 1102 flow [2023-11-30 09:01:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:01:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:01:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 670 transitions. [2023-11-30 09:01:21,408 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5473856209150327 [2023-11-30 09:01:21,408 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 670 transitions. [2023-11-30 09:01:21,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 670 transitions. [2023-11-30 09:01:21,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:21,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 670 transitions. [2023-11-30 09:01:21,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 83.75) internal successors, (670), 8 states have internal predecessors, (670), 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) [2023-11-30 09:01:21,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 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) [2023-11-30 09:01:21,411 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 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) [2023-11-30 09:01:21,412 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 29 predicate places. [2023-11-30 09:01:21,412 INFO L500 AbstractCegarLoop]: Abstraction has has 157 places, 135 transitions, 1102 flow [2023-11-30 09:01:21,412 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.14285714285714) internal successors, (568), 7 states have internal predecessors, (568), 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) [2023-11-30 09:01:21,412 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:21,412 INFO L232 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] [2023-11-30 09:01:21,412 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 09:01:21,412 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:21,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:21,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1594437718, now seen corresponding path program 1 times [2023-11-30 09:01:21,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:21,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946185791] [2023-11-30 09:01:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:21,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:21,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:21,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946185791] [2023-11-30 09:01:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946185791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:21,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:21,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 09:01:21,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179346146] [2023-11-30 09:01:21,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:21,554 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 09:01:21,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:21,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 09:01:21,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 09:01:21,555 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2023-11-30 09:01:21,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 135 transitions, 1102 flow. Second operand has 7 states, 7 states have (on average 81.28571428571429) internal successors, (569), 7 states have internal predecessors, (569), 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) [2023-11-30 09:01:21,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:21,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2023-11-30 09:01:21,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:21,634 INFO L124 PetriNetUnfolderBase]: 39/227 cut-off events. [2023-11-30 09:01:21,634 INFO L125 PetriNetUnfolderBase]: For 650/722 co-relation queries the response was YES. [2023-11-30 09:01:21,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 227 events. 39/227 cut-off events. For 650/722 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 587 event pairs, 3 based on Foata normal form. 8/212 useless extension candidates. Maximal degree in co-relation 618. Up to 82 conditions per place. [2023-11-30 09:01:21,636 INFO L140 encePairwiseOnDemand]: 141/153 looper letters, 54 selfloop transitions, 18 changer transitions 7/140 dead transitions. [2023-11-30 09:01:21,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 140 transitions, 1343 flow [2023-11-30 09:01:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:01:21,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:01:21,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 672 transitions. [2023-11-30 09:01:21,638 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2023-11-30 09:01:21,638 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 672 transitions. [2023-11-30 09:01:21,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 672 transitions. [2023-11-30 09:01:21,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:21,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 672 transitions. [2023-11-30 09:01:21,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2023-11-30 09:01:21,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 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) [2023-11-30 09:01:21,642 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 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) [2023-11-30 09:01:21,643 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 36 predicate places. [2023-11-30 09:01:21,643 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 140 transitions, 1343 flow [2023-11-30 09:01:21,644 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.28571428571429) internal successors, (569), 7 states have internal predecessors, (569), 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) [2023-11-30 09:01:21,644 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:21,644 INFO L232 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] [2023-11-30 09:01:21,644 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 09:01:21,644 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 09:01:21,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1831301212, now seen corresponding path program 1 times [2023-11-30 09:01:21,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872744959] [2023-11-30 09:01:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:21,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:21,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:21,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872744959] [2023-11-30 09:01:21,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872744959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:21,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:21,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 09:01:21,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636435850] [2023-11-30 09:01:21,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:21,781 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 09:01:21,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:21,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 09:01:21,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:01:21,782 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2023-11-30 09:01:21,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 140 transitions, 1343 flow. Second operand has 8 states, 8 states have (on average 80.5) internal successors, (644), 8 states have internal predecessors, (644), 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) [2023-11-30 09:01:21,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:21,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2023-11-30 09:01:21,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:21,862 INFO L124 PetriNetUnfolderBase]: 35/217 cut-off events. [2023-11-30 09:01:21,863 INFO L125 PetriNetUnfolderBase]: For 818/894 co-relation queries the response was YES. [2023-11-30 09:01:21,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 217 events. 35/217 cut-off events. For 818/894 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 516 event pairs, 1 based on Foata normal form. 8/208 useless extension candidates. Maximal degree in co-relation 599. Up to 72 conditions per place. [2023-11-30 09:01:21,864 INFO L140 encePairwiseOnDemand]: 141/153 looper letters, 0 selfloop transitions, 0 changer transitions 142/142 dead transitions. [2023-11-30 09:01:21,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 142 transitions, 1544 flow [2023-11-30 09:01:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:01:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:01:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 746 transitions. [2023-11-30 09:01:21,866 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.541757443718228 [2023-11-30 09:01:21,866 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 746 transitions. [2023-11-30 09:01:21,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 746 transitions. [2023-11-30 09:01:21,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:21,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 746 transitions. [2023-11-30 09:01:21,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.88888888888889) internal successors, (746), 9 states have internal predecessors, (746), 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) [2023-11-30 09:01:21,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-30 09:01:21,869 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-30 09:01:21,870 INFO L307 CegarLoopForPetriNet]: 128 programPoint places, 42 predicate places. [2023-11-30 09:01:21,870 INFO L500 AbstractCegarLoop]: Abstraction has has 170 places, 142 transitions, 1544 flow [2023-11-30 09:01:21,871 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.5) internal successors, (644), 8 states have internal predecessors, (644), 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) [2023-11-30 09:01:21,876 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-bluetooth.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 09:01:21,911 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-30 09:01:21,911 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-30 09:01:21,911 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-30 09:01:21,911 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-30 09:01:21,911 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-30 09:01:21,912 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-30 09:01:21,913 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-30 09:01:21,913 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-30 09:01:21,913 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 09:01:21,913 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:01:21,917 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 09:01:21,917 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 09:01:21,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 09:01:21 BasicIcfg [2023-11-30 09:01:21,923 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 09:01:21,923 INFO L158 Benchmark]: Toolchain (without parser) took 3279.02ms. Allocated memory is still 616.6MB. Free memory was 577.5MB in the beginning and 322.3MB in the end (delta: 255.3MB). Peak memory consumption was 256.3MB. Max. memory is 16.0GB. [2023-11-30 09:01:21,923 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 392.2MB. Free memory is still 343.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 09:01:21,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.82ms. Allocated memory is still 616.6MB. Free memory was 577.5MB in the beginning and 566.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 09:01:21,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.06ms. Allocated memory is still 616.6MB. Free memory was 566.0MB in the beginning and 563.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:01:21,927 INFO L158 Benchmark]: Boogie Preprocessor took 29.60ms. Allocated memory is still 616.6MB. Free memory was 563.9MB in the beginning and 562.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:01:21,927 INFO L158 Benchmark]: RCFGBuilder took 409.15ms. Allocated memory is still 616.6MB. Free memory was 562.3MB in the beginning and 539.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 09:01:21,927 INFO L158 Benchmark]: TraceAbstraction took 2603.80ms. Allocated memory is still 616.6MB. Free memory was 538.7MB in the beginning and 322.3MB in the end (delta: 216.5MB). Peak memory consumption was 218.5MB. Max. memory is 16.0GB. [2023-11-30 09:01:21,928 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 392.2MB. Free memory is still 343.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 190.82ms. Allocated memory is still 616.6MB. Free memory was 577.5MB in the beginning and 566.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.06ms. Allocated memory is still 616.6MB. Free memory was 566.0MB in the beginning and 563.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.60ms. Allocated memory is still 616.6MB. Free memory was 563.9MB in the beginning and 562.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 409.15ms. Allocated memory is still 616.6MB. Free memory was 562.3MB in the beginning and 539.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 2603.80ms. Allocated memory is still 616.6MB. Free memory was 538.7MB in the beginning and 322.3MB in the end (delta: 216.5MB). Peak memory consumption was 218.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 176 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 366 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 604 IncrementalHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 268 mSDtfsCounter, 604 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1544occurred in iteration=9, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 753 NumberOfCodeBlocks, 753 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 744 ConstructedInterpolants, 0 QuantifiedInterpolants, 1862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 09:01:21,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...