/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/pthread-wmm/mix003.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:39:34,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:39:34,474 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 06:39:34,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:39:34,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:39:34,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:39:34,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:39:34,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:39:34,513 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:39:34,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:39:34,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:39:34,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:39:34,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:39:34,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:39:34,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:39:34,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:39:34,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:39:34,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:39:34,519 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:39:34,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:39:34,519 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:39:34,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:39:34,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:39:34,520 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:39:34,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:39:34,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:39:34,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:39:34,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:39:34,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:39:34,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:39:34,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:39:34,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:39:34,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:39:34,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:39:34,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:39:34,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:39:34,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:39:34,786 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:39:34,786 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:39:34,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix003.oepc.i [2023-11-30 06:39:35,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:39:36,137 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:39:36,138 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix003.oepc.i [2023-11-30 06:39:36,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84508144/77704e4df5814706be848775dfd2de89/FLAG19fe5c882 [2023-11-30 06:39:36,164 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84508144/77704e4df5814706be848775dfd2de89 [2023-11-30 06:39:36,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:39:36,167 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:39:36,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:39:36,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:39:36,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:39:36,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9d106e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36, skipping insertion in model container [2023-11-30 06:39:36,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:39:36,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:39:36,560 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:39:36,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:39:36,670 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:39:36,671 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:39:36,677 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:39:36,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36 WrapperNode [2023-11-30 06:39:36,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:39:36,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:39:36,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:39:36,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:39:36,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,738 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2023-11-30 06:39:36,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:39:36,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:39:36,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:39:36,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:39:36,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:39:36,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:39:36,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:39:36,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:39:36,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (1/1) ... [2023-11-30 06:39:36,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:39:36,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:39:36,817 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 06:39:36,854 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 06:39:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:39:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:39:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:39:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:39:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:39:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:39:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:39:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:39:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:39:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:39:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:39:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:39:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:39:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:39:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:39:36,866 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 06:39:37,041 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:39:37,048 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:39:37,314 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:39:37,431 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:39:37,431 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:39:37,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:39:37 BoogieIcfgContainer [2023-11-30 06:39:37,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:39:37,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:39:37,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:39:37,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:39:37,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:39:36" (1/3) ... [2023-11-30 06:39:37,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6242105d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:39:37, skipping insertion in model container [2023-11-30 06:39:37,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:39:36" (2/3) ... [2023-11-30 06:39:37,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6242105d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:39:37, skipping insertion in model container [2023-11-30 06:39:37,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:39:37" (3/3) ... [2023-11-30 06:39:37,440 INFO L112 eAbstractionObserver]: Analyzing ICFG mix003.oepc.i [2023-11-30 06:39:37,453 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:39:37,453 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:39:37,453 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:39:37,505 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:39:37,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 125 transitions, 262 flow [2023-11-30 06:39:37,617 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-30 06:39:37,617 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:39:37,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-30 06:39:37,622 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 125 transitions, 262 flow [2023-11-30 06:39:37,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 122 transitions, 253 flow [2023-11-30 06:39:37,634 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:39:37,639 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;@5ff4d9e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:39:37,639 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:39:37,651 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:39:37,651 INFO L124 PetriNetUnfolderBase]: 0/51 cut-off events. [2023-11-30 06:39:37,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:39:37,651 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:39:37,652 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] [2023-11-30 06:39:37,652 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:39:37,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:39:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1753577185, now seen corresponding path program 1 times [2023-11-30 06:39:37,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:39:37,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996845348] [2023-11-30 06:39:37,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:39:37,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:39:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:39:38,016 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 06:39:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:39:38,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996845348] [2023-11-30 06:39:38,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996845348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:39:38,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:39:38,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:39:38,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98304389] [2023-11-30 06:39:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:39:38,030 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:39:38,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:39:38,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:39:38,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:39:38,067 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 125 [2023-11-30 06:39:38,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 06:39:38,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:39:38,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 125 [2023-11-30 06:39:38,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:39:38,471 INFO L124 PetriNetUnfolderBase]: 521/1312 cut-off events. [2023-11-30 06:39:38,471 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-30 06:39:38,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2195 conditions, 1312 events. 521/1312 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8947 event pairs, 148 based on Foata normal form. 73/1098 useless extension candidates. Maximal degree in co-relation 2144. Up to 682 conditions per place. [2023-11-30 06:39:38,490 INFO L140 encePairwiseOnDemand]: 112/125 looper letters, 28 selfloop transitions, 4 changer transitions 0/128 dead transitions. [2023-11-30 06:39:38,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 335 flow [2023-11-30 06:39:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:39:38,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:39:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2023-11-30 06:39:38,506 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9253333333333333 [2023-11-30 06:39:38,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2023-11-30 06:39:38,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2023-11-30 06:39:38,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:39:38,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2023-11-30 06:39:38,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 06:39:38,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 06:39:38,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 06:39:38,524 INFO L307 CegarLoopForPetriNet]: 129 programPoint places, -1 predicate places. [2023-11-30 06:39:38,525 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 128 transitions, 335 flow [2023-11-30 06:39:38,525 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 06:39:38,525 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:39:38,526 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] [2023-11-30 06:39:38,526 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:39:38,527 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:39:38,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:39:38,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1858900841, now seen corresponding path program 1 times [2023-11-30 06:39:38,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:39:38,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740784370] [2023-11-30 06:39:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:39:38,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:39:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:39:38,705 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 06:39:38,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:39:38,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740784370] [2023-11-30 06:39:38,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740784370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:39:38,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:39:38,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:39:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964035726] [2023-11-30 06:39:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:39:38,708 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:39:38,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:39:38,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:39:38,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:39:38,713 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 125 [2023-11-30 06:39:38,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 128 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 06:39:38,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:39:38,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 125 [2023-11-30 06:39:38,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:39:38,987 INFO L124 PetriNetUnfolderBase]: 388/1357 cut-off events. [2023-11-30 06:39:38,988 INFO L125 PetriNetUnfolderBase]: For 139/391 co-relation queries the response was YES. [2023-11-30 06:39:38,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1357 events. 388/1357 cut-off events. For 139/391 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9580 event pairs, 203 based on Foata normal form. 16/1199 useless extension candidates. Maximal degree in co-relation 2581. Up to 463 conditions per place. [2023-11-30 06:39:39,002 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 25 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2023-11-30 06:39:39,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 125 transitions, 381 flow [2023-11-30 06:39:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:39:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:39:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 436 transitions. [2023-11-30 06:39:39,005 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.872 [2023-11-30 06:39:39,005 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 436 transitions. [2023-11-30 06:39:39,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 436 transitions. [2023-11-30 06:39:39,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:39:39,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 436 transitions. [2023-11-30 06:39:39,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 06:39:39,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 06:39:39,010 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 06:39:39,011 INFO L307 CegarLoopForPetriNet]: 129 programPoint places, -1 predicate places. [2023-11-30 06:39:39,011 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 381 flow [2023-11-30 06:39:39,012 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 06:39:39,012 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:39:39,012 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] [2023-11-30 06:39:39,012 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:39:39,013 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:39:39,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:39:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1858900842, now seen corresponding path program 1 times [2023-11-30 06:39:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:39:39,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287053085] [2023-11-30 06:39:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:39:39,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:39:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:39:39,176 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 06:39:39,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:39:39,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287053085] [2023-11-30 06:39:39,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287053085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:39:39,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:39:39,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:39:39,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470767208] [2023-11-30 06:39:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:39:39,180 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:39:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:39:39,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:39:39,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:39:39,185 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 125 [2023-11-30 06:39:39,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 381 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 06:39:39,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:39:39,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 125 [2023-11-30 06:39:39,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:39:39,515 INFO L124 PetriNetUnfolderBase]: 291/1239 cut-off events. [2023-11-30 06:39:39,516 INFO L125 PetriNetUnfolderBase]: For 270/680 co-relation queries the response was YES. [2023-11-30 06:39:39,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 1239 events. 291/1239 cut-off events. For 270/680 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8836 event pairs, 108 based on Foata normal form. 19/1180 useless extension candidates. Maximal degree in co-relation 2606. Up to 307 conditions per place. [2023-11-30 06:39:39,525 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 30 selfloop transitions, 7 changer transitions 3/136 dead transitions. [2023-11-30 06:39:39,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 136 transitions, 530 flow [2023-11-30 06:39:39,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:39:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:39:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2023-11-30 06:39:39,527 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.894 [2023-11-30 06:39:39,527 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 447 transitions. [2023-11-30 06:39:39,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 447 transitions. [2023-11-30 06:39:39,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:39:39,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 447 transitions. [2023-11-30 06:39:39,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:39:39,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 06:39:39,531 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 06:39:39,532 INFO L307 CegarLoopForPetriNet]: 129 programPoint places, 2 predicate places. [2023-11-30 06:39:39,532 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 530 flow [2023-11-30 06:39:39,532 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 06:39:39,532 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:39:39,532 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] [2023-11-30 06:39:39,533 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:39:39,533 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:39:39,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:39:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1045110008, now seen corresponding path program 1 times [2023-11-30 06:39:39,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:39:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189035098] [2023-11-30 06:39:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:39:39,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:39:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:39:39,731 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 06:39:39,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:39:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189035098] [2023-11-30 06:39:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189035098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:39:39,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:39:39,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:39:39,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018319275] [2023-11-30 06:39:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:39:39,732 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:39:39,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:39:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:39:39,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:39:39,734 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 125 [2023-11-30 06:39:39,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 530 flow. Second operand has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 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 06:39:39,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:39:39,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 125 [2023-11-30 06:39:39,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:39:39,938 INFO L124 PetriNetUnfolderBase]: 285/1276 cut-off events. [2023-11-30 06:39:39,938 INFO L125 PetriNetUnfolderBase]: For 455/1121 co-relation queries the response was YES. [2023-11-30 06:39:39,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3102 conditions, 1276 events. 285/1276 cut-off events. For 455/1121 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9379 event pairs, 91 based on Foata normal form. 36/1245 useless extension candidates. Maximal degree in co-relation 3042. Up to 292 conditions per place. [2023-11-30 06:39:39,944 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 0 selfloop transitions, 0 changer transitions 135/135 dead transitions. [2023-11-30 06:39:39,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 135 transitions, 600 flow [2023-11-30 06:39:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:39:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:39:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 547 transitions. [2023-11-30 06:39:39,946 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8752 [2023-11-30 06:39:39,946 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 547 transitions. [2023-11-30 06:39:39,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 547 transitions. [2023-11-30 06:39:39,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:39:39,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 547 transitions. [2023-11-30 06:39:39,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 06:39:39,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 06:39:39,950 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 06:39:39,951 INFO L307 CegarLoopForPetriNet]: 129 programPoint places, 3 predicate places. [2023-11-30 06:39:39,951 INFO L500 AbstractCegarLoop]: Abstraction has has 132 places, 135 transitions, 600 flow [2023-11-30 06:39:39,951 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 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 06:39:39,958 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix003.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 06:39:39,986 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:39:39,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:39:39,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:39:39,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:39:39,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:39:39,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:39:39,987 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:39:39,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:39:39,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:39:39,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:39:39,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:39:39,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:39:39,988 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:39:39,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:39:39,989 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:39:39,989 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:39:39,989 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:39:39,994 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:39:39,994 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:39:40,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:39:40 BasicIcfg [2023-11-30 06:39:40,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:39:40,005 INFO L158 Benchmark]: Toolchain (without parser) took 3838.21ms. Allocated memory is still 547.4MB. Free memory was 496.9MB in the beginning and 354.9MB in the end (delta: 141.9MB). Peak memory consumption was 143.8MB. Max. memory is 16.0GB. [2023-11-30 06:39:40,005 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 304.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:39:40,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.79ms. Allocated memory is still 547.4MB. Free memory was 496.7MB in the beginning and 473.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 06:39:40,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.47ms. Allocated memory is still 547.4MB. Free memory was 473.0MB in the beginning and 470.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:39:40,011 INFO L158 Benchmark]: Boogie Preprocessor took 45.89ms. Allocated memory is still 547.4MB. Free memory was 470.2MB in the beginning and 468.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:39:40,011 INFO L158 Benchmark]: RCFGBuilder took 647.49ms. Allocated memory is still 547.4MB. Free memory was 468.2MB in the beginning and 428.4MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-11-30 06:39:40,014 INFO L158 Benchmark]: TraceAbstraction took 2569.47ms. Allocated memory is still 547.4MB. Free memory was 427.8MB in the beginning and 354.9MB in the end (delta: 72.9MB). Peak memory consumption was 74.6MB. Max. memory is 16.0GB. [2023-11-30 06:39:40,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 304.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 510.79ms. Allocated memory is still 547.4MB. Free memory was 496.7MB in the beginning and 473.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.47ms. Allocated memory is still 547.4MB. Free memory was 473.0MB in the beginning and 470.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.89ms. Allocated memory is still 547.4MB. Free memory was 470.2MB in the beginning and 468.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 647.49ms. Allocated memory is still 547.4MB. Free memory was 468.2MB in the beginning and 428.4MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * TraceAbstraction took 2569.47ms. Allocated memory is still 547.4MB. Free memory was 427.8MB in the beginning and 354.9MB in the end (delta: 72.9MB). Peak memory consumption was 74.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: 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 7 procedures, 158 locations, 15 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: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 183 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 4 mSDtfsCounter, 183 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=600occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 0.6s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 06:39:40,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...