/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-complex/workstealqueue_mutex-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:03:03,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:03:03,879 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 07:03:03,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:03:03,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:03:03,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:03:03,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:03:03,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:03:03,914 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:03:03,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:03:03,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:03:03,919 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:03:03,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:03:03,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:03:03,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:03:03,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:03:03,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:03:03,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:03:03,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:03:03,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:03:03,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:03:03,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:03:03,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:03:03,922 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:03:03,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:03:03,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:03:03,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:03:03,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:03:03,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:03:03,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:03:03,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:03:03,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:03:03,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:03:03,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:03:04,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:03:04,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:03:04,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:03:04,185 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:03:04,185 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:03:04,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2023-11-30 07:03:05,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:03:05,617 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:03:05,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2023-11-30 07:03:05,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f62b43e/5dc6c55eeaeb4ac4a1a2dd36f51983fd/FLAG11309fe7c [2023-11-30 07:03:05,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f62b43e/5dc6c55eeaeb4ac4a1a2dd36f51983fd [2023-11-30 07:03:05,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:03:05,648 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:03:05,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:03:05,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:03:05,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:03:05,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:03:05" (1/1) ... [2023-11-30 07:03:05,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302ac8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:05, skipping insertion in model container [2023-11-30 07:03:05,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:03:05" (1/1) ... [2023-11-30 07:03:05,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:03:06,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:03:06,274 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:03:06,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:03:06,504 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 07:03:06,505 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 07:03:06,511 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:03:06,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06 WrapperNode [2023-11-30 07:03:06,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:03:06,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:03:06,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:03:06,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:03:06,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,647 INFO L138 Inliner]: procedures = 490, calls = 133, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 1963 [2023-11-30 07:03:06,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:03:06,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:03:06,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:03:06,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:03:06,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:03:06,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:03:06,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:03:06,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:03:06,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (1/1) ... [2023-11-30 07:03:06,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:03:06,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:03:06,795 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 07:03:06,852 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 07:03:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2023-11-30 07:03:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2023-11-30 07:03:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 07:03:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:03:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 07:03:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:03:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:03:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:03:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 07:03:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:03:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:03:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:03:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 07:03:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:03:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:03:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:03:06,864 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 07:03:07,194 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:03:07,196 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:03:08,888 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:03:09,224 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:03:09,225 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-30 07:03:09,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:03:09 BoogieIcfgContainer [2023-11-30 07:03:09,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:03:09,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:03:09,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:03:09,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:03:09,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:03:05" (1/3) ... [2023-11-30 07:03:09,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfa7c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:03:09, skipping insertion in model container [2023-11-30 07:03:09,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:03:06" (2/3) ... [2023-11-30 07:03:09,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfa7c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:03:09, skipping insertion in model container [2023-11-30 07:03:09,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:03:09" (3/3) ... [2023-11-30 07:03:09,235 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2023-11-30 07:03:09,253 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:03:09,253 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2023-11-30 07:03:09,253 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:03:09,429 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:03:09,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1944 places, 2016 transitions, 4039 flow [2023-11-30 07:03:10,709 INFO L124 PetriNetUnfolderBase]: 141/3751 cut-off events. [2023-11-30 07:03:10,709 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:03:10,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3756 conditions, 3751 events. 141/3751 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 18691 event pairs, 0 based on Foata normal form. 0/3441 useless extension candidates. Maximal degree in co-relation 1918. Up to 6 conditions per place. [2023-11-30 07:03:10,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 1944 places, 2016 transitions, 4039 flow [2023-11-30 07:03:10,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1944 places, 2016 transitions, 4039 flow [2023-11-30 07:03:10,807 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:03:10,813 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;@19d6b815, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:03:10,813 INFO L363 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-11-30 07:03:10,818 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:03:10,818 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2023-11-30 07:03:10,818 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:03:10,818 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:10,819 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] [2023-11-30 07:03:10,819 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:10,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash 515336266, now seen corresponding path program 1 times [2023-11-30 07:03:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:10,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053143049] [2023-11-30 07:03:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:10,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:11,292 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 07:03:11,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053143049] [2023-11-30 07:03:11,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053143049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:03:11,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:03:11,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:03:11,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038710699] [2023-11-30 07:03:11,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:03:11,303 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:03:11,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:11,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:03:11,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:03:11,350 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1918 out of 2016 [2023-11-30 07:03:11,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1944 places, 2016 transitions, 4039 flow. Second operand has 4 states, 4 states have (on average 1919.25) internal successors, (7677), 4 states have internal predecessors, (7677), 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 07:03:11,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:11,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1918 of 2016 [2023-11-30 07:03:11,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:03:15,253 INFO L124 PetriNetUnfolderBase]: 673/12831 cut-off events. [2023-11-30 07:03:15,253 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-30 07:03:15,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13635 conditions, 12831 events. 673/12831 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 115868 event pairs, 312 based on Foata normal form. 237/12138 useless extension candidates. Maximal degree in co-relation 11769. Up to 790 conditions per place. [2023-11-30 07:03:15,366 INFO L140 encePairwiseOnDemand]: 1989/2016 looper letters, 66 selfloop transitions, 4 changer transitions 0/1978 dead transitions. [2023-11-30 07:03:15,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1930 places, 1978 transitions, 4103 flow [2023-11-30 07:03:15,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:03:15,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:03:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7765 transitions. [2023-11-30 07:03:15,392 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.962921626984127 [2023-11-30 07:03:15,393 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 7765 transitions. [2023-11-30 07:03:15,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 7765 transitions. [2023-11-30 07:03:15,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:03:15,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 7765 transitions. [2023-11-30 07:03:15,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 1941.25) internal successors, (7765), 4 states have internal predecessors, (7765), 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 07:03:15,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2016.0) internal successors, (10080), 5 states have internal predecessors, (10080), 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 07:03:15,442 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2016.0) internal successors, (10080), 5 states have internal predecessors, (10080), 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 07:03:15,445 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, -14 predicate places. [2023-11-30 07:03:15,446 INFO L500 AbstractCegarLoop]: Abstraction has has 1930 places, 1978 transitions, 4103 flow [2023-11-30 07:03:15,450 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1919.25) internal successors, (7677), 4 states have internal predecessors, (7677), 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 07:03:15,450 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:15,450 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] [2023-11-30 07:03:15,450 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:03:15,451 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:15,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1996170001, now seen corresponding path program 1 times [2023-11-30 07:03:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:15,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296383309] [2023-11-30 07:03:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:15,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:15,567 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 07:03:15,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:15,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296383309] [2023-11-30 07:03:15,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296383309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:03:15,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:03:15,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:03:15,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944295654] [2023-11-30 07:03:15,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:03:15,569 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:03:15,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:03:15,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:03:15,575 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1877 out of 2016 [2023-11-30 07:03:15,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1930 places, 1978 transitions, 4103 flow. Second operand has 3 states, 3 states have (on average 1880.6666666666667) internal successors, (5642), 3 states have internal predecessors, (5642), 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 07:03:15,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:15,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1877 of 2016 [2023-11-30 07:03:15,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:03:22,864 INFO L124 PetriNetUnfolderBase]: 1681/24960 cut-off events. [2023-11-30 07:03:22,864 INFO L125 PetriNetUnfolderBase]: For 1054/1078 co-relation queries the response was YES. [2023-11-30 07:03:23,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28877 conditions, 24960 events. 1681/24960 cut-off events. For 1054/1078 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 249253 event pairs, 438 based on Foata normal form. 0/23155 useless extension candidates. Maximal degree in co-relation 28651. Up to 1774 conditions per place. [2023-11-30 07:03:23,191 INFO L140 encePairwiseOnDemand]: 1992/2016 looper letters, 181 selfloop transitions, 12 changer transitions 13/2062 dead transitions. [2023-11-30 07:03:23,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1932 places, 2062 transitions, 4781 flow [2023-11-30 07:03:23,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:03:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:03:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5840 transitions. [2023-11-30 07:03:23,202 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9656084656084656 [2023-11-30 07:03:23,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5840 transitions. [2023-11-30 07:03:23,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5840 transitions. [2023-11-30 07:03:23,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:03:23,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5840 transitions. [2023-11-30 07:03:23,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1946.6666666666667) internal successors, (5840), 3 states have internal predecessors, (5840), 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 07:03:23,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2016.0) internal successors, (8064), 4 states have internal predecessors, (8064), 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 07:03:23,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2016.0) internal successors, (8064), 4 states have internal predecessors, (8064), 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 07:03:23,246 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, -12 predicate places. [2023-11-30 07:03:23,246 INFO L500 AbstractCegarLoop]: Abstraction has has 1932 places, 2062 transitions, 4781 flow [2023-11-30 07:03:23,248 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1880.6666666666667) internal successors, (5642), 3 states have internal predecessors, (5642), 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 07:03:23,248 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:23,248 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] [2023-11-30 07:03:23,248 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:03:23,248 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:23,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:23,249 INFO L85 PathProgramCache]: Analyzing trace with hash -185804888, now seen corresponding path program 1 times [2023-11-30 07:03:23,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:23,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648083555] [2023-11-30 07:03:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:23,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:23,484 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 07:03:23,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:23,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648083555] [2023-11-30 07:03:23,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648083555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:03:23,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:03:23,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:03:23,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262945614] [2023-11-30 07:03:23,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:03:23,486 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:03:23,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:23,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:03:23,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:03:23,494 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1872 out of 2016 [2023-11-30 07:03:23,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1932 places, 2062 transitions, 4781 flow. Second operand has 4 states, 4 states have (on average 1874.25) internal successors, (7497), 4 states have internal predecessors, (7497), 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 07:03:23,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:23,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1872 of 2016 [2023-11-30 07:03:23,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:03:30,998 INFO L124 PetriNetUnfolderBase]: 1681/24917 cut-off events. [2023-11-30 07:03:30,999 INFO L125 PetriNetUnfolderBase]: For 2793/3229 co-relation queries the response was YES. [2023-11-30 07:03:31,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30970 conditions, 24917 events. 1681/24917 cut-off events. For 2793/3229 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 248579 event pairs, 436 based on Foata normal form. 6/23121 useless extension candidates. Maximal degree in co-relation 30700. Up to 1774 conditions per place. [2023-11-30 07:03:31,215 INFO L140 encePairwiseOnDemand]: 2000/2016 looper letters, 187 selfloop transitions, 14 changer transitions 13/2065 dead transitions. [2023-11-30 07:03:31,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1936 places, 2065 transitions, 5197 flow [2023-11-30 07:03:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:03:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:03:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9567 transitions. [2023-11-30 07:03:31,232 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9491071428571428 [2023-11-30 07:03:31,232 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 9567 transitions. [2023-11-30 07:03:31,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 9567 transitions. [2023-11-30 07:03:31,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:03:31,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 9567 transitions. [2023-11-30 07:03:31,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1913.4) internal successors, (9567), 5 states have internal predecessors, (9567), 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 07:03:31,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2016.0) internal successors, (12096), 6 states have internal predecessors, (12096), 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 07:03:31,269 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2016.0) internal successors, (12096), 6 states have internal predecessors, (12096), 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 07:03:31,269 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, -8 predicate places. [2023-11-30 07:03:31,270 INFO L500 AbstractCegarLoop]: Abstraction has has 1936 places, 2065 transitions, 5197 flow [2023-11-30 07:03:31,271 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1874.25) internal successors, (7497), 4 states have internal predecessors, (7497), 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 07:03:31,271 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:31,272 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:03:31,272 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:03:31,272 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:31,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash 467936253, now seen corresponding path program 1 times [2023-11-30 07:03:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:31,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489698300] [2023-11-30 07:03:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:31,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:03:31,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:31,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489698300] [2023-11-30 07:03:31,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489698300] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:03:31,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116403595] [2023-11-30 07:03:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:31,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:03:31,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:03:31,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:03:31,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 07:03:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:31,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:03:31,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:03:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:03:31,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:03:31,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116403595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:03:31,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:03:31,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:03:31,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179693003] [2023-11-30 07:03:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:03:31,871 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:03:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:03:31,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:03:31,882 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1872 out of 2016 [2023-11-30 07:03:31,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1936 places, 2065 transitions, 5197 flow. Second operand has 6 states, 6 states have (on average 1874.6666666666667) internal successors, (11248), 6 states have internal predecessors, (11248), 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 07:03:31,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:31,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1872 of 2016 [2023-11-30 07:03:31,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:03:39,205 INFO L124 PetriNetUnfolderBase]: 1685/24987 cut-off events. [2023-11-30 07:03:39,205 INFO L125 PetriNetUnfolderBase]: For 5463/6162 co-relation queries the response was YES. [2023-11-30 07:03:39,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33174 conditions, 24987 events. 1685/24987 cut-off events. For 5463/6162 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 249272 event pairs, 361 based on Foata normal form. 11/23197 useless extension candidates. Maximal degree in co-relation 32862. Up to 1774 conditions per place. [2023-11-30 07:03:39,429 INFO L140 encePairwiseOnDemand]: 1992/2016 looper letters, 183 selfloop transitions, 23 changer transitions 13/2070 dead transitions. [2023-11-30 07:03:39,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1941 places, 2070 transitions, 5661 flow [2023-11-30 07:03:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:03:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:03:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13315 transitions. [2023-11-30 07:03:39,452 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9435232426303855 [2023-11-30 07:03:39,452 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 13315 transitions. [2023-11-30 07:03:39,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 13315 transitions. [2023-11-30 07:03:39,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:03:39,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 13315 transitions. [2023-11-30 07:03:39,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1902.142857142857) internal successors, (13315), 7 states have internal predecessors, (13315), 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 07:03:39,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2016.0) internal successors, (16128), 8 states have internal predecessors, (16128), 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 07:03:39,506 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2016.0) internal successors, (16128), 8 states have internal predecessors, (16128), 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 07:03:39,507 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, -3 predicate places. [2023-11-30 07:03:39,508 INFO L500 AbstractCegarLoop]: Abstraction has has 1941 places, 2070 transitions, 5661 flow [2023-11-30 07:03:39,510 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1874.6666666666667) internal successors, (11248), 6 states have internal predecessors, (11248), 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 07:03:39,511 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:39,511 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:03:39,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 07:03:39,717 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:03:39,718 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:39,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:39,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1621126778, now seen corresponding path program 1 times [2023-11-30 07:03:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:39,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998449645] [2023-11-30 07:03:39,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:03:39,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:39,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998449645] [2023-11-30 07:03:39,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998449645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:03:39,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:03:39,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:03:39,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811343476] [2023-11-30 07:03:39,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:03:39,832 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:03:39,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:03:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:03:39,838 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1872 out of 2016 [2023-11-30 07:03:39,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1941 places, 2070 transitions, 5661 flow. Second operand has 4 states, 4 states have (on average 1876.25) internal successors, (7505), 4 states have internal predecessors, (7505), 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 07:03:39,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:39,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1872 of 2016 [2023-11-30 07:03:39,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:03:46,793 INFO L124 PetriNetUnfolderBase]: 1672/25386 cut-off events. [2023-11-30 07:03:46,794 INFO L125 PetriNetUnfolderBase]: For 9010/9632 co-relation queries the response was YES. [2023-11-30 07:03:46,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35516 conditions, 25386 events. 1672/25386 cut-off events. For 9010/9632 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 252723 event pairs, 354 based on Foata normal form. 4/23597 useless extension candidates. Maximal degree in co-relation 35170. Up to 1972 conditions per place. [2023-11-30 07:03:47,039 INFO L140 encePairwiseOnDemand]: 1992/2016 looper letters, 183 selfloop transitions, 25 changer transitions 13/2072 dead transitions. [2023-11-30 07:03:47,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1941 places, 2072 transitions, 6115 flow [2023-11-30 07:03:47,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:03:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:03:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9489 transitions. [2023-11-30 07:03:47,056 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9413690476190476 [2023-11-30 07:03:47,056 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 9489 transitions. [2023-11-30 07:03:47,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 9489 transitions. [2023-11-30 07:03:47,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:03:47,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 9489 transitions. [2023-11-30 07:03:47,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1897.8) internal successors, (9489), 5 states have internal predecessors, (9489), 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 07:03:47,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2016.0) internal successors, (12096), 6 states have internal predecessors, (12096), 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 07:03:47,093 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2016.0) internal successors, (12096), 6 states have internal predecessors, (12096), 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 07:03:47,096 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, -3 predicate places. [2023-11-30 07:03:47,097 INFO L500 AbstractCegarLoop]: Abstraction has has 1941 places, 2072 transitions, 6115 flow [2023-11-30 07:03:47,099 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1876.25) internal successors, (7505), 4 states have internal predecessors, (7505), 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 07:03:47,103 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:47,103 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, 1, 1] [2023-11-30 07:03:47,103 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:03:47,103 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:47,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:47,104 INFO L85 PathProgramCache]: Analyzing trace with hash -431577922, now seen corresponding path program 1 times [2023-11-30 07:03:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:47,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729408302] [2023-11-30 07:03:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:47,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:03:47,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:47,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729408302] [2023-11-30 07:03:47,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729408302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:03:47,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348979421] [2023-11-30 07:03:47,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:47,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:03:47,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:03:47,246 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:03:47,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 07:03:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:47,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 07:03:47,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:03:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:03:47,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:03:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:03:47,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348979421] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:03:47,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:03:47,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-30 07:03:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347653951] [2023-11-30 07:03:47,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:03:47,541 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 07:03:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:47,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 07:03:47,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 07:03:47,553 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1872 out of 2016 [2023-11-30 07:03:47,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1941 places, 2072 transitions, 6115 flow. Second operand has 10 states, 10 states have (on average 1875.4) internal successors, (18754), 10 states have internal predecessors, (18754), 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 07:03:47,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:47,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1872 of 2016 [2023-11-30 07:03:47,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:03:55,563 INFO L124 PetriNetUnfolderBase]: 1668/25174 cut-off events. [2023-11-30 07:03:55,564 INFO L125 PetriNetUnfolderBase]: For 13571/14804 co-relation queries the response was YES. [2023-11-30 07:03:55,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37433 conditions, 25174 events. 1668/25174 cut-off events. For 13571/14804 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 250805 event pairs, 354 based on Foata normal form. 18/23405 useless extension candidates. Maximal degree in co-relation 36988. Up to 1975 conditions per place. [2023-11-30 07:03:55,824 INFO L140 encePairwiseOnDemand]: 1992/2016 looper letters, 193 selfloop transitions, 29 changer transitions 13/2086 dead transitions. [2023-11-30 07:03:55,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1950 places, 2086 transitions, 6713 flow [2023-11-30 07:03:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 07:03:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 07:03:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18942 transitions. [2023-11-30 07:03:55,850 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9395833333333333 [2023-11-30 07:03:55,851 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 18942 transitions. [2023-11-30 07:03:55,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 18942 transitions. [2023-11-30 07:03:55,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:03:55,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 18942 transitions. [2023-11-30 07:03:56,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 1894.2) internal successors, (18942), 10 states have internal predecessors, (18942), 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 07:03:56,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 2016.0) internal successors, (22176), 11 states have internal predecessors, (22176), 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 07:03:56,054 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 2016.0) internal successors, (22176), 11 states have internal predecessors, (22176), 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 07:03:56,055 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, 6 predicate places. [2023-11-30 07:03:56,055 INFO L500 AbstractCegarLoop]: Abstraction has has 1950 places, 2086 transitions, 6713 flow [2023-11-30 07:03:56,059 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1875.4) internal successors, (18754), 10 states have internal predecessors, (18754), 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 07:03:56,059 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:03:56,059 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:56,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 07:03:56,264 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-30 07:03:56,265 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:03:56,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:03:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash -209841048, now seen corresponding path program 2 times [2023-11-30 07:03:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:03:56,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268809289] [2023-11-30 07:03:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:03:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:03:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:03:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-30 07:03:56,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:03:56,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268809289] [2023-11-30 07:03:56,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268809289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:03:56,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:03:56,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:03:56,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059185484] [2023-11-30 07:03:56,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:03:56,391 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:03:56,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:03:56,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:03:56,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:03:56,396 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1872 out of 2016 [2023-11-30 07:03:56,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1950 places, 2086 transitions, 6713 flow. Second operand has 4 states, 4 states have (on average 1876.0) internal successors, (7504), 4 states have internal predecessors, (7504), 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 07:03:56,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:03:56,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1872 of 2016 [2023-11-30 07:03:56,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:04:04,026 INFO L124 PetriNetUnfolderBase]: 1698/25542 cut-off events. [2023-11-30 07:04:04,026 INFO L125 PetriNetUnfolderBase]: For 19440/20567 co-relation queries the response was YES. [2023-11-30 07:04:04,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40067 conditions, 25542 events. 1698/25542 cut-off events. For 19440/20567 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 253535 event pairs, 359 based on Foata normal form. 17/23755 useless extension candidates. Maximal degree in co-relation 39580. Up to 1990 conditions per place. [2023-11-30 07:04:04,246 INFO L140 encePairwiseOnDemand]: 2000/2016 looper letters, 214 selfloop transitions, 14 changer transitions 13/2096 dead transitions. [2023-11-30 07:04:04,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1952 places, 2096 transitions, 7341 flow [2023-11-30 07:04:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:04:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:04:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9571 transitions. [2023-11-30 07:04:04,255 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9495039682539682 [2023-11-30 07:04:04,255 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 9571 transitions. [2023-11-30 07:04:04,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 9571 transitions. [2023-11-30 07:04:04,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:04:04,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 9571 transitions. [2023-11-30 07:04:04,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1914.2) internal successors, (9571), 5 states have internal predecessors, (9571), 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 07:04:04,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2016.0) internal successors, (12096), 6 states have internal predecessors, (12096), 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 07:04:04,279 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2016.0) internal successors, (12096), 6 states have internal predecessors, (12096), 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 07:04:04,279 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, 8 predicate places. [2023-11-30 07:04:04,280 INFO L500 AbstractCegarLoop]: Abstraction has has 1952 places, 2096 transitions, 7341 flow [2023-11-30 07:04:04,281 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1876.0) internal successors, (7504), 4 states have internal predecessors, (7504), 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 07:04:04,281 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:04:04,281 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:04:04,281 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:04:04,281 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:04:04,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:04:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1401504347, now seen corresponding path program 1 times [2023-11-30 07:04:04,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:04:04,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740240231] [2023-11-30 07:04:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:04:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:04:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:04:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 07:04:04,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:04:04,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740240231] [2023-11-30 07:04:04,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740240231] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:04:04,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741857477] [2023-11-30 07:04:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:04:04,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:04:04,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:04:04,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:04:04,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 07:04:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:04:04,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 07:04:04,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:04:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 07:04:04,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:04:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 07:04:04,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741857477] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:04:04,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:04:04,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2023-11-30 07:04:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505969970] [2023-11-30 07:04:04,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:04:04,887 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 07:04:04,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:04:04,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 07:04:04,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-30 07:04:04,899 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 1872 out of 2016 [2023-11-30 07:04:05,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1952 places, 2096 transitions, 7341 flow. Second operand has 11 states, 11 states have (on average 1875.6363636363637) internal successors, (20632), 11 states have internal predecessors, (20632), 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 07:04:05,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:04:05,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1872 of 2016 [2023-11-30 07:04:05,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:04:13,092 INFO L124 PetriNetUnfolderBase]: 1695/25388 cut-off events. [2023-11-30 07:04:13,092 INFO L125 PetriNetUnfolderBase]: For 26133/27777 co-relation queries the response was YES. [2023-11-30 07:04:13,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42086 conditions, 25388 events. 1695/25388 cut-off events. For 26133/27777 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 252236 event pairs, 356 based on Foata normal form. 25/23622 useless extension candidates. Maximal degree in co-relation 41493. Up to 1992 conditions per place. [2023-11-30 07:04:13,312 INFO L140 encePairwiseOnDemand]: 1992/2016 looper letters, 209 selfloop transitions, 32 changer transitions 13/2103 dead transitions. [2023-11-30 07:04:13,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1964 places, 2103 transitions, 7917 flow [2023-11-30 07:04:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:04:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:04:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24564 transitions. [2023-11-30 07:04:13,333 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9372710622710623 [2023-11-30 07:04:13,333 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 24564 transitions. [2023-11-30 07:04:13,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 24564 transitions. [2023-11-30 07:04:13,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:04:13,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 24564 transitions. [2023-11-30 07:04:13,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 1889.5384615384614) internal successors, (24564), 13 states have internal predecessors, (24564), 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 07:04:13,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 2016.0) internal successors, (28224), 14 states have internal predecessors, (28224), 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 07:04:13,386 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 2016.0) internal successors, (28224), 14 states have internal predecessors, (28224), 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 07:04:13,387 INFO L307 CegarLoopForPetriNet]: 1944 programPoint places, 20 predicate places. [2023-11-30 07:04:13,387 INFO L500 AbstractCegarLoop]: Abstraction has has 1964 places, 2103 transitions, 7917 flow [2023-11-30 07:04:13,390 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1875.6363636363637) internal successors, (20632), 11 states have internal predecessors, (20632), 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 07:04:13,390 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:04:13,390 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:04:13,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-30 07:04:13,596 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:04:13,596 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-30 07:04:13,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:04:13,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2145927878, now seen corresponding path program 2 times [2023-11-30 07:04:13,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:04:13,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440994928] [2023-11-30 07:04:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:04:13,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:04:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 07:04:13,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 07:04:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 07:04:13,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 07:04:13,728 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 07:04:13,729 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2023-11-30 07:04:13,732 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2023-11-30 07:04:13,732 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2023-11-30 07:04:13,732 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2023-11-30 07:04:13,732 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2023-11-30 07:04:13,732 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2023-11-30 07:04:13,733 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2023-11-30 07:04:13,734 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2023-11-30 07:04:13,735 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2023-11-30 07:04:13,736 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2023-11-30 07:04:13,737 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2023-11-30 07:04:13,738 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2023-11-30 07:04:13,739 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2023-11-30 07:04:13,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2023-11-30 07:04:13,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2023-11-30 07:04:13,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2023-11-30 07:04:13,743 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 07:04:13,743 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-11-30 07:04:13,746 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 07:04:13,746 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-30 07:04:13,868 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 07:04:13,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2115 places, 2192 transitions, 4400 flow [2023-11-30 07:04:15,409 INFO L124 PetriNetUnfolderBase]: 220/5727 cut-off events. [2023-11-30 07:04:15,409 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-30 07:04:15,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5739 conditions, 5727 events. 220/5727 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 35073 event pairs, 0 based on Foata normal form. 0/5247 useless extension candidates. Maximal degree in co-relation 3753. Up to 9 conditions per place. [2023-11-30 07:04:15,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 2115 places, 2192 transitions, 4400 flow [2023-11-30 07:04:15,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2115 places, 2192 transitions, 4400 flow [2023-11-30 07:04:15,538 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:04:15,538 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;@19d6b815, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:04:15,538 INFO L363 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2023-11-30 07:04:15,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:04:15,541 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2023-11-30 07:04:15,541 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:04:15,541 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:04:15,541 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] [2023-11-30 07:04:15,541 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-30 07:04:15,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:04:15,542 INFO L85 PathProgramCache]: Analyzing trace with hash -621222694, now seen corresponding path program 1 times [2023-11-30 07:04:15,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:04:15,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465047769] [2023-11-30 07:04:15,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:04:15,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:04:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:04:15,624 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 07:04:15,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:04:15,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465047769] [2023-11-30 07:04:15,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465047769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:04:15,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:04:15,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:04:15,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894436265] [2023-11-30 07:04:15,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:04:15,625 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:04:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:04:15,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:04:15,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:04:15,631 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 2085 out of 2192 [2023-11-30 07:04:15,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2115 places, 2192 transitions, 4400 flow. Second operand has 4 states, 4 states have (on average 2086.25) internal successors, (8345), 4 states have internal predecessors, (8345), 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 07:04:15,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:04:15,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2085 of 2192 [2023-11-30 07:04:15,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:04:38,833 INFO L124 PetriNetUnfolderBase]: 7595/91757 cut-off events. [2023-11-30 07:04:38,833 INFO L125 PetriNetUnfolderBase]: For 97/100 co-relation queries the response was YES. [2023-11-30 07:04:40,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100385 conditions, 91757 events. 7595/91757 cut-off events. For 97/100 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 1308729 event pairs, 4734 based on Foata normal form. 2571/87942 useless extension candidates. Maximal degree in co-relation 86517. Up to 8569 conditions per place. [2023-11-30 07:04:40,870 INFO L140 encePairwiseOnDemand]: 2164/2192 looper letters, 74 selfloop transitions, 4 changer transitions 0/2153 dead transitions. [2023-11-30 07:04:40,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2101 places, 2153 transitions, 4478 flow [2023-11-30 07:04:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:04:40,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:04:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8442 transitions. [2023-11-30 07:04:40,878 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9628193430656934 [2023-11-30 07:04:40,879 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 8442 transitions. [2023-11-30 07:04:40,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 8442 transitions. [2023-11-30 07:04:40,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:04:40,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 8442 transitions. [2023-11-30 07:04:40,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 2110.5) internal successors, (8442), 4 states have internal predecessors, (8442), 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 07:04:40,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2192.0) internal successors, (10960), 5 states have internal predecessors, (10960), 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 07:04:40,900 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2192.0) internal successors, (10960), 5 states have internal predecessors, (10960), 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 07:04:40,902 INFO L307 CegarLoopForPetriNet]: 2115 programPoint places, -14 predicate places. [2023-11-30 07:04:40,902 INFO L500 AbstractCegarLoop]: Abstraction has has 2101 places, 2153 transitions, 4478 flow [2023-11-30 07:04:40,903 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2086.25) internal successors, (8345), 4 states have internal predecessors, (8345), 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 07:04:40,903 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:04:40,903 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] [2023-11-30 07:04:40,903 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 07:04:40,903 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-30 07:04:40,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:04:40,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1652703983, now seen corresponding path program 1 times [2023-11-30 07:04:40,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:04:40,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283337197] [2023-11-30 07:04:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:04:40,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:04:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:04:40,980 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 07:04:40,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:04:40,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283337197] [2023-11-30 07:04:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283337197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:04:40,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:04:40,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:04:40,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455481978] [2023-11-30 07:04:40,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:04:40,981 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:04:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:04:40,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:04:40,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:04:40,987 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 2044 out of 2192 [2023-11-30 07:04:40,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2101 places, 2153 transitions, 4478 flow. Second operand has 3 states, 3 states have (on average 2047.6666666666667) internal successors, (6143), 3 states have internal predecessors, (6143), 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 07:04:40,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:04:40,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2044 of 2192 [2023-11-30 07:04:40,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:05:50,309 INFO L124 PetriNetUnfolderBase]: 19917/208319 cut-off events. [2023-11-30 07:05:50,310 INFO L125 PetriNetUnfolderBase]: For 10479/11121 co-relation queries the response was YES. [2023-11-30 07:05:54,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252550 conditions, 208319 events. 19917/208319 cut-off events. For 10479/11121 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 3207824 event pairs, 7006 based on Foata normal form. 0/193703 useless extension candidates. Maximal degree in co-relation 188880. Up to 20668 conditions per place. [2023-11-30 07:05:56,028 INFO L140 encePairwiseOnDemand]: 2168/2192 looper letters, 205 selfloop transitions, 12 changer transitions 0/2249 dead transitions. [2023-11-30 07:05:56,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2103 places, 2249 transitions, 5242 flow [2023-11-30 07:05:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:05:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:05:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6361 transitions. [2023-11-30 07:05:56,052 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9673053527980535 [2023-11-30 07:05:56,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 6361 transitions. [2023-11-30 07:05:56,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 6361 transitions. [2023-11-30 07:05:56,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:05:56,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 6361 transitions. [2023-11-30 07:05:56,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 2120.3333333333335) internal successors, (6361), 3 states have internal predecessors, (6361), 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 07:05:56,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2192.0) internal successors, (8768), 4 states have internal predecessors, (8768), 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 07:05:56,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2192.0) internal successors, (8768), 4 states have internal predecessors, (8768), 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 07:05:56,098 INFO L307 CegarLoopForPetriNet]: 2115 programPoint places, -12 predicate places. [2023-11-30 07:05:56,098 INFO L500 AbstractCegarLoop]: Abstraction has has 2103 places, 2249 transitions, 5242 flow [2023-11-30 07:05:56,099 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2047.6666666666667) internal successors, (6143), 3 states have internal predecessors, (6143), 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 07:05:56,099 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:05:56,099 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] [2023-11-30 07:05:56,099 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:05:56,099 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-30 07:05:56,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:05:56,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1833776184, now seen corresponding path program 1 times [2023-11-30 07:05:56,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:05:56,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173183094] [2023-11-30 07:05:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:05:56,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:05:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:05:56,265 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 07:05:56,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:05:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173183094] [2023-11-30 07:05:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173183094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:05:56,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:05:56,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:05:56,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733997311] [2023-11-30 07:05:56,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:05:56,267 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:05:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:05:56,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:05:56,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:05:56,272 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 2039 out of 2192 [2023-11-30 07:05:56,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2103 places, 2249 transitions, 5242 flow. Second operand has 4 states, 4 states have (on average 2041.25) internal successors, (8165), 4 states have internal predecessors, (8165), 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 07:05:56,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:05:56,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2039 of 2192 [2023-11-30 07:05:56,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:07:19,583 INFO L124 PetriNetUnfolderBase]: 21424/214540 cut-off events. [2023-11-30 07:07:19,583 INFO L125 PetriNetUnfolderBase]: For 25995/33129 co-relation queries the response was YES. [2023-11-30 07:07:24,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285364 conditions, 214540 events. 21424/214540 cut-off events. For 25995/33129 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 3300415 event pairs, 7947 based on Foata normal form. 135/198957 useless extension candidates. Maximal degree in co-relation 178700. Up to 21693 conditions per place. [2023-11-30 07:07:25,694 INFO L140 encePairwiseOnDemand]: 2176/2192 looper letters, 211 selfloop transitions, 14 changer transitions 0/2252 dead transitions. [2023-11-30 07:07:25,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2107 places, 2252 transitions, 5698 flow [2023-11-30 07:07:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:07:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:07:25,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10422 transitions. [2023-11-30 07:07:25,726 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9509124087591241 [2023-11-30 07:07:25,726 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 10422 transitions. [2023-11-30 07:07:25,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 10422 transitions. [2023-11-30 07:07:25,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:07:25,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 10422 transitions. [2023-11-30 07:07:25,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 2084.4) internal successors, (10422), 5 states have internal predecessors, (10422), 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 07:07:25,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2192.0) internal successors, (13152), 6 states have internal predecessors, (13152), 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 07:07:25,763 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2192.0) internal successors, (13152), 6 states have internal predecessors, (13152), 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 07:07:25,764 INFO L307 CegarLoopForPetriNet]: 2115 programPoint places, -8 predicate places. [2023-11-30 07:07:25,764 INFO L500 AbstractCegarLoop]: Abstraction has has 2107 places, 2252 transitions, 5698 flow [2023-11-30 07:07:25,765 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2041.25) internal successors, (8165), 4 states have internal predecessors, (8165), 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 07:07:25,765 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:07:25,765 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:07:25,776 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 07:07:25,776 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-30 07:07:25,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:07:25,777 INFO L85 PathProgramCache]: Analyzing trace with hash -821488499, now seen corresponding path program 1 times [2023-11-30 07:07:25,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:07:25,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065490808] [2023-11-30 07:07:25,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:07:25,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:07:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:07:26,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:07:26,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:07:26,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065490808] [2023-11-30 07:07:26,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065490808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:07:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940807169] [2023-11-30 07:07:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:07:26,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:07:26,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:07:26,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:07:26,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 07:07:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:07:26,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:07:26,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:07:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:07:26,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:07:26,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940807169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:07:26,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:07:26,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:07:26,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006948197] [2023-11-30 07:07:26,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:07:26,472 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:07:26,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:07:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:07:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:07:26,492 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 2039 out of 2192 [2023-11-30 07:07:26,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2107 places, 2252 transitions, 5698 flow. Second operand has 6 states, 6 states have (on average 2041.6666666666667) internal successors, (12250), 6 states have internal predecessors, (12250), 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 07:07:26,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:07:26,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2039 of 2192 [2023-11-30 07:07:26,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand