/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/goblint-regression/06-symbeq_05-funloop_hard2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:22:47,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:22:47,266 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 07:22:47,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:22:47,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:22:47,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:22:47,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:22:47,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:22:47,291 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:22:47,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:22:47,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:22:47,295 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:22:47,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:22:47,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:22:47,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:22:47,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:22:47,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:22:47,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:22:47,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:22:47,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:22:47,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:22:47,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:22:47,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:22:47,298 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:22:47,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:22:47,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:22:47,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:22:47,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:22:47,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:22:47,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:22:47,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:22:47,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:22:47,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:22:47,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:22:47,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:22:47,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:22:47,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:22:47,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:22:47,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:22:47,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i [2023-11-30 07:22:48,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:22:48,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:22:48,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i [2023-11-30 07:22:48,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06c2b4665/4049cc9f5f574c12bb226515e7b51b02/FLAG5fd32e98d [2023-11-30 07:22:48,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06c2b4665/4049cc9f5f574c12bb226515e7b51b02 [2023-11-30 07:22:48,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:22:48,631 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:22:48,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:22:48,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:22:48,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:22:48,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:22:48" (1/1) ... [2023-11-30 07:22:48,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2450771e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:48, skipping insertion in model container [2023-11-30 07:22:48,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:22:48" (1/1) ... [2023-11-30 07:22:48,676 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:22:48,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:22:48,997 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:22:49,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:22:49,076 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:22:49,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49 WrapperNode [2023-11-30 07:22:49,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:22:49,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:22:49,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:22:49,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:22:49,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,126 INFO L138 Inliner]: procedures = 263, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2023-11-30 07:22:49,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:22:49,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:22:49,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:22:49,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:22:49,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:22:49,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:22:49,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:22:49,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:22:49,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (1/1) ... [2023-11-30 07:22:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:22:49,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:49,189 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 07:22:49,214 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 07:22:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:22:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:22:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:22:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:22:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:22:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:22:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:22:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:22:49,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:22:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:22:49,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:22:49,231 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 07:22:49,358 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:22:49,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:22:49,512 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:22:49,531 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:22:49,532 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-30 07:22:49,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:22:49 BoogieIcfgContainer [2023-11-30 07:22:49,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:22:49,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:22:49,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:22:49,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:22:49,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:22:48" (1/3) ... [2023-11-30 07:22:49,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fde5787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:22:49, skipping insertion in model container [2023-11-30 07:22:49,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:49" (2/3) ... [2023-11-30 07:22:49,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fde5787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:22:49, skipping insertion in model container [2023-11-30 07:22:49,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:22:49" (3/3) ... [2023-11-30 07:22:49,544 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2023-11-30 07:22:49,556 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:22:49,556 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-30 07:22:49,556 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:22:49,593 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 07:22:49,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 110 transitions, 224 flow [2023-11-30 07:22:49,650 INFO L124 PetriNetUnfolderBase]: 6/109 cut-off events. [2023-11-30 07:22:49,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:22:49,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 109 events. 6/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 207 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-30 07:22:49,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 110 transitions, 224 flow [2023-11-30 07:22:49,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 109 transitions, 221 flow [2023-11-30 07:22:49,666 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:22:49,670 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;@1cebfe50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:22:49,671 INFO L363 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-30 07:22:49,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:22:49,677 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2023-11-30 07:22:49,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:22:49,677 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:49,678 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:49,678 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:49,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1196050753, now seen corresponding path program 1 times [2023-11-30 07:22:49,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:49,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446331655] [2023-11-30 07:22:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:49,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:49,918 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 07:22:49,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:49,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446331655] [2023-11-30 07:22:49,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446331655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:49,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:49,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081044234] [2023-11-30 07:22:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:49,927 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:49,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:49,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:49,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:49,951 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:49,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 109 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 07:22:49,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:49,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:49,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:50,043 INFO L124 PetriNetUnfolderBase]: 17/219 cut-off events. [2023-11-30 07:22:50,043 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:22:50,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 219 events. 17/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 765 event pairs, 10 based on Foata normal form. 11/198 useless extension candidates. Maximal degree in co-relation 218. Up to 46 conditions per place. [2023-11-30 07:22:50,046 INFO L140 encePairwiseOnDemand]: 100/110 looper letters, 24 selfloop transitions, 4 changer transitions 0/113 dead transitions. [2023-11-30 07:22:50,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 285 flow [2023-11-30 07:22:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:50,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 465 transitions. [2023-11-30 07:22:50,060 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8454545454545455 [2023-11-30 07:22:50,060 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 465 transitions. [2023-11-30 07:22:50,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 465 transitions. [2023-11-30 07:22:50,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:50,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 465 transitions. [2023-11-30 07:22:50,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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 07:22:50,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:50,069 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:50,072 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2023-11-30 07:22:50,072 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 113 transitions, 285 flow [2023-11-30 07:22:50,072 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 07:22:50,072 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:50,072 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:50,072 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:22:50,073 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:50,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash 110926758, now seen corresponding path program 1 times [2023-11-30 07:22:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:50,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956505283] [2023-11-30 07:22:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:50,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956505283] [2023-11-30 07:22:50,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956505283] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962436121] [2023-11-30 07:22:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:50,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:50,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:50,190 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 07:22:50,208 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 07:22:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:50,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:22:50,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:50,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:22:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962436121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:50,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:22:50,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:22:50,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580271784] [2023-11-30 07:22:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:50,316 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:50,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:50,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:50,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:22:50,318 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:50,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 113 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 07:22:50,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:50,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:50,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:50,449 INFO L124 PetriNetUnfolderBase]: 17/218 cut-off events. [2023-11-30 07:22:50,450 INFO L125 PetriNetUnfolderBase]: For 24/32 co-relation queries the response was YES. [2023-11-30 07:22:50,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 218 events. 17/218 cut-off events. For 24/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 760 event pairs, 10 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 249. Up to 45 conditions per place. [2023-11-30 07:22:50,452 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 7 changer transitions 0/112 dead transitions. [2023-11-30 07:22:50,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 112 transitions, 335 flow [2023-11-30 07:22:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:22:50,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:22:50,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 630 transitions. [2023-11-30 07:22:50,455 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2023-11-30 07:22:50,455 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 630 transitions. [2023-11-30 07:22:50,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 630 transitions. [2023-11-30 07:22:50,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:50,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 630 transitions. [2023-11-30 07:22:50,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.0) internal successors, (630), 7 states have internal predecessors, (630), 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 07:22:50,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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 07:22:50,460 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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 07:22:50,461 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2023-11-30 07:22:50,461 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 112 transitions, 335 flow [2023-11-30 07:22:50,462 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 07:22:50,462 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:50,463 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:50,475 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 07:22:50,667 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:50,668 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:50,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:50,669 INFO L85 PathProgramCache]: Analyzing trace with hash -856237513, now seen corresponding path program 1 times [2023-11-30 07:22:50,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:50,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371131225] [2023-11-30 07:22:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:22:50,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:50,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371131225] [2023-11-30 07:22:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371131225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:50,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:50,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:50,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019251911] [2023-11-30 07:22:50,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:50,712 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:50,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:50,713 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:50,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 112 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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 07:22:50,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:50,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:50,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:50,767 INFO L124 PetriNetUnfolderBase]: 17/217 cut-off events. [2023-11-30 07:22:50,767 INFO L125 PetriNetUnfolderBase]: For 69/85 co-relation queries the response was YES. [2023-11-30 07:22:50,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 217 events. 17/217 cut-off events. For 69/85 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 758 event pairs, 10 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 280. Up to 44 conditions per place. [2023-11-30 07:22:50,770 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 18 selfloop transitions, 8 changer transitions 0/111 dead transitions. [2023-11-30 07:22:50,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 111 transitions, 381 flow [2023-11-30 07:22:50,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 451 transitions. [2023-11-30 07:22:50,772 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.82 [2023-11-30 07:22:50,772 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 451 transitions. [2023-11-30 07:22:50,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 451 transitions. [2023-11-30 07:22:50,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:50,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 451 transitions. [2023-11-30 07:22:50,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 07:22:50,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:50,775 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:50,776 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 12 predicate places. [2023-11-30 07:22:50,777 INFO L500 AbstractCegarLoop]: Abstraction has has 119 places, 111 transitions, 381 flow [2023-11-30 07:22:50,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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 07:22:50,777 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:50,777 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] [2023-11-30 07:22:50,777 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:22:50,777 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:50,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:50,778 INFO L85 PathProgramCache]: Analyzing trace with hash -835026733, now seen corresponding path program 1 times [2023-11-30 07:22:50,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:50,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389862338] [2023-11-30 07:22:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:50,853 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 07:22:50,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389862338] [2023-11-30 07:22:50,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389862338] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501626663] [2023-11-30 07:22:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:50,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:50,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:50,856 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 07:22:50,880 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 07:22:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:50,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-30 07:22:50,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:22:50,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:22:50,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501626663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:50,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:22:50,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-30 07:22:50,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147479188] [2023-11-30 07:22:50,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:50,945 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:22:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:22:50,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:50,947 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 110 [2023-11-30 07:22:50,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 111 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 07:22:50,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:50,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 110 [2023-11-30 07:22:50,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:51,013 INFO L124 PetriNetUnfolderBase]: 53/405 cut-off events. [2023-11-30 07:22:51,014 INFO L125 PetriNetUnfolderBase]: For 334/385 co-relation queries the response was YES. [2023-11-30 07:22:51,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 405 events. 53/405 cut-off events. For 334/385 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1873 event pairs, 19 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 689. Up to 84 conditions per place. [2023-11-30 07:22:51,016 INFO L140 encePairwiseOnDemand]: 107/110 looper letters, 22 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2023-11-30 07:22:51,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 469 flow [2023-11-30 07:22:51,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:22:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:22:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-11-30 07:22:51,017 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9030303030303031 [2023-11-30 07:22:51,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-11-30 07:22:51,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-11-30 07:22:51,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:51,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-11-30 07:22:51,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 07:22:51,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 07:22:51,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 07:22:51,020 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2023-11-30 07:22:51,021 INFO L500 AbstractCegarLoop]: Abstraction has has 121 places, 119 transitions, 469 flow [2023-11-30 07:22:51,021 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 07:22:51,021 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:51,021 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] [2023-11-30 07:22:51,028 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 07:22:51,226 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,SelfDestructingSolverStorable3 [2023-11-30 07:22:51,226 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:51,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1843836103, now seen corresponding path program 1 times [2023-11-30 07:22:51,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:51,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607842555] [2023-11-30 07:22:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:51,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:51,287 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 07:22:51,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:51,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607842555] [2023-11-30 07:22:51,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607842555] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:51,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767739289] [2023-11-30 07:22:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:51,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:51,289 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 07:22:51,307 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 07:22:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:51,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 07:22:51,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:51,393 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 07:22:51,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:51,425 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 07:22:51,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767739289] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:51,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:51,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-30 07:22:51,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246686000] [2023-11-30 07:22:51,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:51,429 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 07:22:51,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:51,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 07:22:51,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 07:22:51,432 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:51,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 119 transitions, 469 flow. Second operand has 10 states, 10 states have (on average 88.9) internal successors, (889), 10 states have internal predecessors, (889), 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 07:22:51,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:51,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:51,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:51,531 INFO L124 PetriNetUnfolderBase]: 37/320 cut-off events. [2023-11-30 07:22:51,531 INFO L125 PetriNetUnfolderBase]: For 433/453 co-relation queries the response was YES. [2023-11-30 07:22:51,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 320 events. 37/320 cut-off events. For 433/453 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1343 event pairs, 20 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 587. Up to 76 conditions per place. [2023-11-30 07:22:51,533 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 29 selfloop transitions, 9 changer transitions 0/127 dead transitions. [2023-11-30 07:22:51,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 127 transitions, 609 flow [2023-11-30 07:22:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:22:51,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:22:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 810 transitions. [2023-11-30 07:22:51,535 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2023-11-30 07:22:51,535 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 810 transitions. [2023-11-30 07:22:51,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 810 transitions. [2023-11-30 07:22:51,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:51,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 810 transitions. [2023-11-30 07:22:51,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 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 07:22:51,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 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 07:22:51,538 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 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 07:22:51,539 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 22 predicate places. [2023-11-30 07:22:51,540 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 609 flow [2023-11-30 07:22:51,540 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.9) internal successors, (889), 10 states have internal predecessors, (889), 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 07:22:51,540 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:51,540 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:22:51,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:51,750 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:51,750 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:51,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:51,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1910925593, now seen corresponding path program 2 times [2023-11-30 07:22:51,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:51,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166890919] [2023-11-30 07:22:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:51,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:51,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:51,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166890919] [2023-11-30 07:22:51,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166890919] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:51,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411183123] [2023-11-30 07:22:51,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:22:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:51,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:51,879 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 07:22:51,906 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 07:22:51,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 07:22:51,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:22:51,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-30 07:22:51,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:51,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-30 07:22:52,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 07:22:52,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-30 07:22:52,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-30 07:22:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-30 07:22:52,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:22:52,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411183123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:52,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:22:52,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2023-11-30 07:22:52,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094247479] [2023-11-30 07:22:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:52,233 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 07:22:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 07:22:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-11-30 07:22:52,235 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 110 [2023-11-30 07:22:52,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 127 transitions, 609 flow. Second operand has 11 states, 11 states have (on average 72.36363636363636) internal successors, (796), 11 states have internal predecessors, (796), 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 07:22:52,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:52,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 110 [2023-11-30 07:22:52,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:52,651 INFO L124 PetriNetUnfolderBase]: 464/1812 cut-off events. [2023-11-30 07:22:52,652 INFO L125 PetriNetUnfolderBase]: For 3021/3048 co-relation queries the response was YES. [2023-11-30 07:22:52,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4159 conditions, 1812 events. 464/1812 cut-off events. For 3021/3048 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 13448 event pairs, 137 based on Foata normal form. 3/1555 useless extension candidates. Maximal degree in co-relation 3990. Up to 616 conditions per place. [2023-11-30 07:22:52,661 INFO L140 encePairwiseOnDemand]: 96/110 looper letters, 106 selfloop transitions, 18 changer transitions 0/208 dead transitions. [2023-11-30 07:22:52,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 208 transitions, 1309 flow [2023-11-30 07:22:52,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:22:52,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:22:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1034 transitions. [2023-11-30 07:22:52,664 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7230769230769231 [2023-11-30 07:22:52,664 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1034 transitions. [2023-11-30 07:22:52,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1034 transitions. [2023-11-30 07:22:52,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:52,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1034 transitions. [2023-11-30 07:22:52,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.53846153846153) internal successors, (1034), 13 states have internal predecessors, (1034), 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 07:22:52,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:52,668 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:52,669 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 34 predicate places. [2023-11-30 07:22:52,669 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 208 transitions, 1309 flow [2023-11-30 07:22:52,669 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.36363636363636) internal successors, (796), 11 states have internal predecessors, (796), 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 07:22:52,669 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:52,670 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:22:52,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:52,874 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:52,875 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:52,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:52,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1863413926, now seen corresponding path program 1 times [2023-11-30 07:22:52,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:52,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635085367] [2023-11-30 07:22:52,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:52,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:52,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635085367] [2023-11-30 07:22:52,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635085367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:52,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183069195] [2023-11-30 07:22:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:52,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:52,971 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:52,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 07:22:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:53,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 07:22:53,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:53,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:53,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183069195] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:53,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:53,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-30 07:22:53,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094159297] [2023-11-30 07:22:53,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:53,144 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 07:22:53,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:53,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 07:22:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-30 07:22:53,148 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:53,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 208 transitions, 1309 flow. Second operand has 18 states, 18 states have (on average 89.16666666666667) internal successors, (1605), 18 states have internal predecessors, (1605), 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 07:22:53,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:53,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:53,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:53,466 INFO L124 PetriNetUnfolderBase]: 466/1817 cut-off events. [2023-11-30 07:22:53,467 INFO L125 PetriNetUnfolderBase]: For 4285/4312 co-relation queries the response was YES. [2023-11-30 07:22:53,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4567 conditions, 1817 events. 466/1817 cut-off events. For 4285/4312 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 13294 event pairs, 135 based on Foata normal form. 6/1565 useless extension candidates. Maximal degree in co-relation 4198. Up to 610 conditions per place. [2023-11-30 07:22:53,475 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 72 selfloop transitions, 21 changer transitions 0/236 dead transitions. [2023-11-30 07:22:53,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 236 transitions, 1783 flow [2023-11-30 07:22:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 07:22:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 07:22:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1872 transitions. [2023-11-30 07:22:53,479 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8103896103896104 [2023-11-30 07:22:53,479 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1872 transitions. [2023-11-30 07:22:53,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1872 transitions. [2023-11-30 07:22:53,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:53,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1872 transitions. [2023-11-30 07:22:53,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 89.14285714285714) internal successors, (1872), 21 states have internal predecessors, (1872), 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 07:22:53,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 110.0) internal successors, (2420), 22 states have internal predecessors, (2420), 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 07:22:53,486 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 110.0) internal successors, (2420), 22 states have internal predecessors, (2420), 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 07:22:53,486 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 54 predicate places. [2023-11-30 07:22:53,487 INFO L500 AbstractCegarLoop]: Abstraction has has 161 places, 236 transitions, 1783 flow [2023-11-30 07:22:53,487 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 89.16666666666667) internal successors, (1605), 18 states have internal predecessors, (1605), 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 07:22:53,487 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:53,487 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 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 07:22:53,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:53,691 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:53,693 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:53,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:53,693 INFO L85 PathProgramCache]: Analyzing trace with hash 742151270, now seen corresponding path program 2 times [2023-11-30 07:22:53,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:53,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048437485] [2023-11-30 07:22:53,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:53,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:53,870 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:53,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:53,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048437485] [2023-11-30 07:22:53,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048437485] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:53,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74678138] [2023-11-30 07:22:53,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:22:53,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:53,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:53,873 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:53,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 07:22:53,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 07:22:53,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:22:53,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-30 07:22:53,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:53,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-30 07:22:54,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 07:22:54,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-30 07:22:54,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-30 07:22:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-30 07:22:54,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:22:54,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74678138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:54,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:22:54,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 26 [2023-11-30 07:22:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739312436] [2023-11-30 07:22:54,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:54,256 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 07:22:54,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:54,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 07:22:54,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2023-11-30 07:22:54,258 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 110 [2023-11-30 07:22:54,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 236 transitions, 1783 flow. Second operand has 11 states, 11 states have (on average 72.36363636363636) internal successors, (796), 11 states have internal predecessors, (796), 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 07:22:54,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:54,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 110 [2023-11-30 07:22:54,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:54,733 INFO L124 PetriNetUnfolderBase]: 689/2492 cut-off events. [2023-11-30 07:22:54,733 INFO L125 PetriNetUnfolderBase]: For 7903/7994 co-relation queries the response was YES. [2023-11-30 07:22:54,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7183 conditions, 2492 events. 689/2492 cut-off events. For 7903/7994 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 19327 event pairs, 154 based on Foata normal form. 14/2105 useless extension candidates. Maximal degree in co-relation 6799. Up to 929 conditions per place. [2023-11-30 07:22:54,746 INFO L140 encePairwiseOnDemand]: 96/110 looper letters, 136 selfloop transitions, 30 changer transitions 0/286 dead transitions. [2023-11-30 07:22:54,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 286 transitions, 2435 flow [2023-11-30 07:22:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:22:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:22:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1013 transitions. [2023-11-30 07:22:54,749 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7083916083916084 [2023-11-30 07:22:54,749 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1013 transitions. [2023-11-30 07:22:54,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1013 transitions. [2023-11-30 07:22:54,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:54,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1013 transitions. [2023-11-30 07:22:54,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.92307692307692) internal successors, (1013), 13 states have internal predecessors, (1013), 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 07:22:54,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:54,753 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:54,754 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 66 predicate places. [2023-11-30 07:22:54,754 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 286 transitions, 2435 flow [2023-11-30 07:22:54,754 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.36363636363636) internal successors, (796), 11 states have internal predecessors, (796), 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 07:22:54,754 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:54,754 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 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 07:22:54,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-30 07:22:54,959 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:54,959 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:54,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1290252408, now seen corresponding path program 1 times [2023-11-30 07:22:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:54,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528906696] [2023-11-30 07:22:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:54,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:55,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:55,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528906696] [2023-11-30 07:22:55,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528906696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:55,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65632996] [2023-11-30 07:22:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:55,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:55,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:55,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 07:22:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:55,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 07:22:55,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:55,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:55,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65632996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:55,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:55,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-30 07:22:55,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94952490] [2023-11-30 07:22:55,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:55,396 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 07:22:55,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:55,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 07:22:55,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-30 07:22:55,398 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:55,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 286 transitions, 2435 flow. Second operand has 23 states, 23 states have (on average 89.3913043478261) internal successors, (2056), 23 states have internal predecessors, (2056), 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 07:22:55,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:55,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:55,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:55,840 INFO L124 PetriNetUnfolderBase]: 689/2513 cut-off events. [2023-11-30 07:22:55,841 INFO L125 PetriNetUnfolderBase]: For 9767/9841 co-relation queries the response was YES. [2023-11-30 07:22:55,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7689 conditions, 2513 events. 689/2513 cut-off events. For 9767/9841 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 19264 event pairs, 154 based on Foata normal form. 0/2112 useless extension candidates. Maximal degree in co-relation 7096. Up to 929 conditions per place. [2023-11-30 07:22:55,855 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 96 selfloop transitions, 30 changer transitions 0/307 dead transitions. [2023-11-30 07:22:55,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 307 transitions, 2951 flow [2023-11-30 07:22:55,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 07:22:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 07:22:55,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2666 transitions. [2023-11-30 07:22:55,860 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8078787878787879 [2023-11-30 07:22:55,860 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2666 transitions. [2023-11-30 07:22:55,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2666 transitions. [2023-11-30 07:22:55,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:55,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2666 transitions. [2023-11-30 07:22:55,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 88.86666666666666) internal successors, (2666), 30 states have internal predecessors, (2666), 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 07:22:55,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 110.0) internal successors, (3410), 31 states have internal predecessors, (3410), 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 07:22:55,869 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 110.0) internal successors, (3410), 31 states have internal predecessors, (3410), 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 07:22:55,869 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 95 predicate places. [2023-11-30 07:22:55,869 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 307 transitions, 2951 flow [2023-11-30 07:22:55,870 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 89.3913043478261) internal successors, (2056), 23 states have internal predecessors, (2056), 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 07:22:55,870 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:55,870 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 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 07:22:55,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:56,075 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:56,076 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:56,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1542636687, now seen corresponding path program 2 times [2023-11-30 07:22:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:56,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356620467] [2023-11-30 07:22:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:56,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:56,364 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:56,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:56,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356620467] [2023-11-30 07:22:56,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356620467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:56,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:56,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-30 07:22:56,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029509214] [2023-11-30 07:22:56,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:56,365 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 07:22:56,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:56,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 07:22:56,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-30 07:22:56,366 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 110 [2023-11-30 07:22:56,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 307 transitions, 2951 flow. Second operand has 11 states, 11 states have (on average 72.45454545454545) internal successors, (797), 11 states have internal predecessors, (797), 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 07:22:56,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:56,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 110 [2023-11-30 07:22:56,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:56,831 INFO L124 PetriNetUnfolderBase]: 669/2396 cut-off events. [2023-11-30 07:22:56,831 INFO L125 PetriNetUnfolderBase]: For 11926/12310 co-relation queries the response was YES. [2023-11-30 07:22:56,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8663 conditions, 2396 events. 669/2396 cut-off events. For 11926/12310 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 18074 event pairs, 154 based on Foata normal form. 59/2090 useless extension candidates. Maximal degree in co-relation 8052. Up to 942 conditions per place. [2023-11-30 07:22:56,846 INFO L140 encePairwiseOnDemand]: 97/110 looper letters, 154 selfloop transitions, 29 changer transitions 0/321 dead transitions. [2023-11-30 07:22:56,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 321 transitions, 3507 flow [2023-11-30 07:22:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:22:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:22:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1032 transitions. [2023-11-30 07:22:56,848 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7216783216783217 [2023-11-30 07:22:56,848 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1032 transitions. [2023-11-30 07:22:56,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1032 transitions. [2023-11-30 07:22:56,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:56,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1032 transitions. [2023-11-30 07:22:56,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.38461538461539) internal successors, (1032), 13 states have internal predecessors, (1032), 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 07:22:56,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:56,852 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:56,852 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 107 predicate places. [2023-11-30 07:22:56,852 INFO L500 AbstractCegarLoop]: Abstraction has has 214 places, 321 transitions, 3507 flow [2023-11-30 07:22:56,852 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.45454545454545) internal successors, (797), 11 states have internal predecessors, (797), 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 07:22:56,852 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:56,853 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 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 07:22:56,853 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 07:22:56,853 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:56,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash 69774937, now seen corresponding path program 1 times [2023-11-30 07:22:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:56,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293806376] [2023-11-30 07:22:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:57,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:57,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293806376] [2023-11-30 07:22:57,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293806376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:57,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:57,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-30 07:22:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776986803] [2023-11-30 07:22:57,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:57,087 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 07:22:57,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:57,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 07:22:57,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-30 07:22:57,088 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 110 [2023-11-30 07:22:57,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 321 transitions, 3507 flow. Second operand has 11 states, 11 states have (on average 72.45454545454545) internal successors, (797), 11 states have internal predecessors, (797), 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 07:22:57,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:57,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 110 [2023-11-30 07:22:57,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:57,513 INFO L124 PetriNetUnfolderBase]: 656/2332 cut-off events. [2023-11-30 07:22:57,513 INFO L125 PetriNetUnfolderBase]: For 14076/14729 co-relation queries the response was YES. [2023-11-30 07:22:57,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9588 conditions, 2332 events. 656/2332 cut-off events. For 14076/14729 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 17414 event pairs, 167 based on Foata normal form. 26/2008 useless extension candidates. Maximal degree in co-relation 8959. Up to 927 conditions per place. [2023-11-30 07:22:57,531 INFO L140 encePairwiseOnDemand]: 97/110 looper letters, 160 selfloop transitions, 29 changer transitions 0/325 dead transitions. [2023-11-30 07:22:57,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 325 transitions, 3953 flow [2023-11-30 07:22:57,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:22:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:22:57,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1011 transitions. [2023-11-30 07:22:57,533 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.706993006993007 [2023-11-30 07:22:57,533 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1011 transitions. [2023-11-30 07:22:57,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1011 transitions. [2023-11-30 07:22:57,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:57,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1011 transitions. [2023-11-30 07:22:57,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.76923076923077) internal successors, (1011), 13 states have internal predecessors, (1011), 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 07:22:57,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:57,538 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 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 07:22:57,538 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 119 predicate places. [2023-11-30 07:22:57,539 INFO L500 AbstractCegarLoop]: Abstraction has has 226 places, 325 transitions, 3953 flow [2023-11-30 07:22:57,540 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.45454545454545) internal successors, (797), 11 states have internal predecessors, (797), 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 07:22:57,540 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:57,540 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:57,540 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:22:57,540 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:57,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1671738648, now seen corresponding path program 1 times [2023-11-30 07:22:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:57,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301453601] [2023-11-30 07:22:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:57,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:57,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:57,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301453601] [2023-11-30 07:22:57,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301453601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:57,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:57,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:57,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523184611] [2023-11-30 07:22:57,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:57,605 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:57,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:57,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:57,606 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 110 [2023-11-30 07:22:57,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 325 transitions, 3953 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 07:22:57,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:57,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 110 [2023-11-30 07:22:57,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:58,126 INFO L124 PetriNetUnfolderBase]: 1095/3956 cut-off events. [2023-11-30 07:22:58,127 INFO L125 PetriNetUnfolderBase]: For 33323/34180 co-relation queries the response was YES. [2023-11-30 07:22:58,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17386 conditions, 3956 events. 1095/3956 cut-off events. For 33323/34180 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 31244 event pairs, 474 based on Foata normal form. 6/3396 useless extension candidates. Maximal degree in co-relation 16755. Up to 1688 conditions per place. [2023-11-30 07:22:58,151 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 118 selfloop transitions, 4 changer transitions 0/371 dead transitions. [2023-11-30 07:22:58,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 371 transitions, 5113 flow [2023-11-30 07:22:58,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:58,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 483 transitions. [2023-11-30 07:22:58,152 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8781818181818182 [2023-11-30 07:22:58,152 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 483 transitions. [2023-11-30 07:22:58,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 483 transitions. [2023-11-30 07:22:58,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:58,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 483 transitions. [2023-11-30 07:22:58,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 07:22:58,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:58,154 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:58,155 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 123 predicate places. [2023-11-30 07:22:58,155 INFO L500 AbstractCegarLoop]: Abstraction has has 230 places, 371 transitions, 5113 flow [2023-11-30 07:22:58,155 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 07:22:58,155 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:58,155 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:58,155 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 07:22:58,155 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:58,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:58,155 INFO L85 PathProgramCache]: Analyzing trace with hash -698432836, now seen corresponding path program 1 times [2023-11-30 07:22:58,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:58,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172519353] [2023-11-30 07:22:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:58,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:58,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:58,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172519353] [2023-11-30 07:22:58,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172519353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:58,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:58,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882787448] [2023-11-30 07:22:58,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:58,207 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:58,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:58,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:58,208 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2023-11-30 07:22:58,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 371 transitions, 5113 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 07:22:58,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:58,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2023-11-30 07:22:58,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:58,766 INFO L124 PetriNetUnfolderBase]: 1124/3904 cut-off events. [2023-11-30 07:22:58,766 INFO L125 PetriNetUnfolderBase]: For 48977/51102 co-relation queries the response was YES. [2023-11-30 07:22:58,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18599 conditions, 3904 events. 1124/3904 cut-off events. For 48977/51102 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 30478 event pairs, 460 based on Foata normal form. 20/3377 useless extension candidates. Maximal degree in co-relation 17964. Up to 1722 conditions per place. [2023-11-30 07:22:58,792 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 132 selfloop transitions, 4 changer transitions 0/382 dead transitions. [2023-11-30 07:22:58,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 382 transitions, 5599 flow [2023-11-30 07:22:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2023-11-30 07:22:58,793 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.850909090909091 [2023-11-30 07:22:58,793 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2023-11-30 07:22:58,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2023-11-30 07:22:58,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:58,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2023-11-30 07:22:58,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 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 07:22:58,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:58,795 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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 07:22:58,796 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 127 predicate places. [2023-11-30 07:22:58,796 INFO L500 AbstractCegarLoop]: Abstraction has has 234 places, 382 transitions, 5599 flow [2023-11-30 07:22:58,796 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 07:22:58,796 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:58,797 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:58,797 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 07:22:58,797 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:22:58,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash -233094186, now seen corresponding path program 1 times [2023-11-30 07:22:58,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156689461] [2023-11-30 07:22:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:58,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:59,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:59,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156689461] [2023-11-30 07:22:59,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156689461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:59,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:59,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:22:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840661304] [2023-11-30 07:22:59,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:59,184 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:22:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:22:59,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:22:59,186 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:22:59,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 382 transitions, 5599 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:22:59,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:59,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:22:59,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:00,963 INFO L124 PetriNetUnfolderBase]: 2467/6701 cut-off events. [2023-11-30 07:23:00,963 INFO L125 PetriNetUnfolderBase]: For 67089/69014 co-relation queries the response was YES. [2023-11-30 07:23:00,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33998 conditions, 6701 events. 2467/6701 cut-off events. For 67089/69014 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 52405 event pairs, 636 based on Foata normal form. 32/5984 useless extension candidates. Maximal degree in co-relation 33345. Up to 2976 conditions per place. [2023-11-30 07:23:01,092 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 545 selfloop transitions, 136 changer transitions 0/807 dead transitions. [2023-11-30 07:23:01,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 807 transitions, 12021 flow [2023-11-30 07:23:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-30 07:23:01,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-30 07:23:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 2670 transitions. [2023-11-30 07:23:01,098 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.638755980861244 [2023-11-30 07:23:01,098 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 2670 transitions. [2023-11-30 07:23:01,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 2670 transitions. [2023-11-30 07:23:01,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:01,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 2670 transitions. [2023-11-30 07:23:01,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 70.26315789473684) internal successors, (2670), 38 states have internal predecessors, (2670), 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 07:23:01,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:23:01,109 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:23:01,110 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 164 predicate places. [2023-11-30 07:23:01,110 INFO L500 AbstractCegarLoop]: Abstraction has has 271 places, 807 transitions, 12021 flow [2023-11-30 07:23:01,110 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:01,110 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:01,110 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:01,111 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 07:23:01,111 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:01,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2036980794, now seen corresponding path program 2 times [2023-11-30 07:23:01,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:01,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029099770] [2023-11-30 07:23:01,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:01,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029099770] [2023-11-30 07:23:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029099770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:01,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:01,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:01,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299901067] [2023-11-30 07:23:01,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:01,602 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:01,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:01,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:01,603 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:01,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 807 transitions, 12021 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:01,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:01,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:01,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:03,668 INFO L124 PetriNetUnfolderBase]: 2848/7819 cut-off events. [2023-11-30 07:23:03,668 INFO L125 PetriNetUnfolderBase]: For 83959/86408 co-relation queries the response was YES. [2023-11-30 07:23:03,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44625 conditions, 7819 events. 2848/7819 cut-off events. For 83959/86408 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 63167 event pairs, 790 based on Foata normal form. 34/6959 useless extension candidates. Maximal degree in co-relation 43954. Up to 3565 conditions per place. [2023-11-30 07:23:03,709 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 761 selfloop transitions, 161 changer transitions 0/1048 dead transitions. [2023-11-30 07:23:03,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 1048 transitions, 16965 flow [2023-11-30 07:23:03,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-30 07:23:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-30 07:23:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2253 transitions. [2023-11-30 07:23:03,712 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6400568181818181 [2023-11-30 07:23:03,712 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 2253 transitions. [2023-11-30 07:23:03,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 2253 transitions. [2023-11-30 07:23:03,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:03,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 2253 transitions. [2023-11-30 07:23:03,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 70.40625) internal successors, (2253), 32 states have internal predecessors, (2253), 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 07:23:03,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 110.0) internal successors, (3630), 33 states have internal predecessors, (3630), 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 07:23:03,718 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 110.0) internal successors, (3630), 33 states have internal predecessors, (3630), 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 07:23:03,718 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 195 predicate places. [2023-11-30 07:23:03,718 INFO L500 AbstractCegarLoop]: Abstraction has has 302 places, 1048 transitions, 16965 flow [2023-11-30 07:23:03,718 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:03,718 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:03,719 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:03,719 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 07:23:03,719 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:03,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash -476403947, now seen corresponding path program 1 times [2023-11-30 07:23:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66053078] [2023-11-30 07:23:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:03,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:04,091 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:04,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66053078] [2023-11-30 07:23:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66053078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:04,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:04,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:04,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751873853] [2023-11-30 07:23:04,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:04,092 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:04,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:04,093 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:04,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 1048 transitions, 16965 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:04,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:04,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:04,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:06,665 INFO L124 PetriNetUnfolderBase]: 3540/9583 cut-off events. [2023-11-30 07:23:06,666 INFO L125 PetriNetUnfolderBase]: For 104248/105893 co-relation queries the response was YES. [2023-11-30 07:23:06,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60470 conditions, 9583 events. 3540/9583 cut-off events. For 104248/105893 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 80891 event pairs, 556 based on Foata normal form. 61/8571 useless extension candidates. Maximal degree in co-relation 59781. Up to 4482 conditions per place. [2023-11-30 07:23:06,741 INFO L140 encePairwiseOnDemand]: 89/110 looper letters, 1141 selfloop transitions, 253 changer transitions 0/1526 dead transitions. [2023-11-30 07:23:06,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1526 transitions, 26819 flow [2023-11-30 07:23:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-30 07:23:06,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-11-30 07:23:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2588 transitions. [2023-11-30 07:23:06,744 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6535353535353535 [2023-11-30 07:23:06,744 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2588 transitions. [2023-11-30 07:23:06,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2588 transitions. [2023-11-30 07:23:06,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:06,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2588 transitions. [2023-11-30 07:23:06,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 71.88888888888889) internal successors, (2588), 36 states have internal predecessors, (2588), 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 07:23:06,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 110.0) internal successors, (4070), 37 states have internal predecessors, (4070), 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 07:23:06,752 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 110.0) internal successors, (4070), 37 states have internal predecessors, (4070), 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 07:23:06,752 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 230 predicate places. [2023-11-30 07:23:06,752 INFO L500 AbstractCegarLoop]: Abstraction has has 337 places, 1526 transitions, 26819 flow [2023-11-30 07:23:06,752 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:06,753 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:06,753 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:06,753 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 07:23:06,753 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:06,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:06,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1486391384, now seen corresponding path program 3 times [2023-11-30 07:23:06,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:06,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223560225] [2023-11-30 07:23:06,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:06,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:07,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:07,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223560225] [2023-11-30 07:23:07,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223560225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:07,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:07,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:07,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820898631] [2023-11-30 07:23:07,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:07,161 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:07,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:07,162 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:07,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1526 transitions, 26819 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:07,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:07,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:07,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:10,394 INFO L124 PetriNetUnfolderBase]: 3930/10540 cut-off events. [2023-11-30 07:23:10,394 INFO L125 PetriNetUnfolderBase]: For 128733/131868 co-relation queries the response was YES. [2023-11-30 07:23:10,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74220 conditions, 10540 events. 3930/10540 cut-off events. For 128733/131868 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 90452 event pairs, 476 based on Foata normal form. 152/9535 useless extension candidates. Maximal degree in co-relation 73513. Up to 5220 conditions per place. [2023-11-30 07:23:10,467 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 1445 selfloop transitions, 359 changer transitions 0/1933 dead transitions. [2023-11-30 07:23:10,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 1933 transitions, 36927 flow [2023-11-30 07:23:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-30 07:23:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-30 07:23:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 2694 transitions. [2023-11-30 07:23:10,471 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6444976076555023 [2023-11-30 07:23:10,471 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 2694 transitions. [2023-11-30 07:23:10,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 2694 transitions. [2023-11-30 07:23:10,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:10,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 2694 transitions. [2023-11-30 07:23:10,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 70.89473684210526) internal successors, (2694), 38 states have internal predecessors, (2694), 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 07:23:10,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:23:10,479 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:23:10,480 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 267 predicate places. [2023-11-30 07:23:10,480 INFO L500 AbstractCegarLoop]: Abstraction has has 374 places, 1933 transitions, 36927 flow [2023-11-30 07:23:10,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:10,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:10,480 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:10,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 07:23:10,480 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:10,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1161794155, now seen corresponding path program 2 times [2023-11-30 07:23:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596996631] [2023-11-30 07:23:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:10,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:10,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:10,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596996631] [2023-11-30 07:23:10,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596996631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:10,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:10,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796392624] [2023-11-30 07:23:10,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:10,778 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:10,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:10,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:10,780 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:10,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1933 transitions, 36927 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:10,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:10,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:10,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:15,218 INFO L124 PetriNetUnfolderBase]: 4587/12280 cut-off events. [2023-11-30 07:23:15,218 INFO L125 PetriNetUnfolderBase]: For 168406/172621 co-relation queries the response was YES. [2023-11-30 07:23:15,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95384 conditions, 12280 events. 4587/12280 cut-off events. For 168406/172621 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 108937 event pairs, 536 based on Foata normal form. 152/11067 useless extension candidates. Maximal degree in co-relation 94659. Up to 6174 conditions per place. [2023-11-30 07:23:15,305 INFO L140 encePairwiseOnDemand]: 89/110 looper letters, 1960 selfloop transitions, 368 changer transitions 0/2464 dead transitions. [2023-11-30 07:23:15,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 2464 transitions, 51507 flow [2023-11-30 07:23:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-30 07:23:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-11-30 07:23:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2901 transitions. [2023-11-30 07:23:15,308 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6432372505543237 [2023-11-30 07:23:15,308 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2901 transitions. [2023-11-30 07:23:15,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2901 transitions. [2023-11-30 07:23:15,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:15,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2901 transitions. [2023-11-30 07:23:15,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 70.7560975609756) internal successors, (2901), 41 states have internal predecessors, (2901), 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 07:23:15,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 110.0) internal successors, (4620), 42 states have internal predecessors, (4620), 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 07:23:15,316 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 110.0) internal successors, (4620), 42 states have internal predecessors, (4620), 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 07:23:15,316 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 307 predicate places. [2023-11-30 07:23:15,316 INFO L500 AbstractCegarLoop]: Abstraction has has 414 places, 2464 transitions, 51507 flow [2023-11-30 07:23:15,317 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:15,317 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:15,317 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:15,317 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 07:23:15,317 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:15,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -276132365, now seen corresponding path program 3 times [2023-11-30 07:23:15,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:15,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496111307] [2023-11-30 07:23:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:15,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:15,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:15,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496111307] [2023-11-30 07:23:15,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496111307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:15,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:15,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:15,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633685145] [2023-11-30 07:23:15,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:15,647 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:15,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:15,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:15,648 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:15,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 2464 transitions, 51507 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:15,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:15,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:15,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:20,914 INFO L124 PetriNetUnfolderBase]: 5071/13574 cut-off events. [2023-11-30 07:23:20,914 INFO L125 PetriNetUnfolderBase]: For 206707/211973 co-relation queries the response was YES. [2023-11-30 07:23:20,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114894 conditions, 13574 events. 5071/13574 cut-off events. For 206707/211973 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 123211 event pairs, 552 based on Foata normal form. 248/12292 useless extension candidates. Maximal degree in co-relation 114151. Up to 6963 conditions per place. [2023-11-30 07:23:21,029 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 2224 selfloop transitions, 433 changer transitions 0/2793 dead transitions. [2023-11-30 07:23:21,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 2793 transitions, 63999 flow [2023-11-30 07:23:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-30 07:23:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-11-30 07:23:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2484 transitions. [2023-11-30 07:23:21,031 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6451948051948052 [2023-11-30 07:23:21,031 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 2484 transitions. [2023-11-30 07:23:21,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 2484 transitions. [2023-11-30 07:23:21,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:21,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 2484 transitions. [2023-11-30 07:23:21,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 70.97142857142858) internal successors, (2484), 35 states have internal predecessors, (2484), 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 07:23:21,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 110.0) internal successors, (3960), 36 states have internal predecessors, (3960), 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 07:23:21,038 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 110.0) internal successors, (3960), 36 states have internal predecessors, (3960), 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 07:23:21,038 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 341 predicate places. [2023-11-30 07:23:21,038 INFO L500 AbstractCegarLoop]: Abstraction has has 448 places, 2793 transitions, 63999 flow [2023-11-30 07:23:21,038 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:21,038 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:21,038 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:21,038 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-30 07:23:21,038 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:21,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:21,039 INFO L85 PathProgramCache]: Analyzing trace with hash 818658709, now seen corresponding path program 4 times [2023-11-30 07:23:21,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:21,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001417721] [2023-11-30 07:23:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:21,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:21,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001417721] [2023-11-30 07:23:21,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001417721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:21,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:21,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:21,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577656275] [2023-11-30 07:23:21,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:21,317 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:21,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:21,318 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:21,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 2793 transitions, 63999 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:21,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:21,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:21,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:28,264 INFO L124 PetriNetUnfolderBase]: 5501/14593 cut-off events. [2023-11-30 07:23:28,264 INFO L125 PetriNetUnfolderBase]: For 239646/245317 co-relation queries the response was YES. [2023-11-30 07:23:28,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134966 conditions, 14593 events. 5501/14593 cut-off events. For 239646/245317 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 134259 event pairs, 629 based on Foata normal form. 390/13317 useless extension candidates. Maximal degree in co-relation 134205. Up to 7706 conditions per place. [2023-11-30 07:23:28,383 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 2570 selfloop transitions, 569 changer transitions 0/3275 dead transitions. [2023-11-30 07:23:28,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 3275 transitions, 81311 flow [2023-11-30 07:23:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-30 07:23:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-11-30 07:23:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2411 transitions. [2023-11-30 07:23:28,385 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6641873278236915 [2023-11-30 07:23:28,386 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2411 transitions. [2023-11-30 07:23:28,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2411 transitions. [2023-11-30 07:23:28,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:28,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2411 transitions. [2023-11-30 07:23:28,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 73.06060606060606) internal successors, (2411), 33 states have internal predecessors, (2411), 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 07:23:28,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 110.0) internal successors, (3740), 34 states have internal predecessors, (3740), 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 07:23:28,392 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 110.0) internal successors, (3740), 34 states have internal predecessors, (3740), 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 07:23:28,392 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 373 predicate places. [2023-11-30 07:23:28,392 INFO L500 AbstractCegarLoop]: Abstraction has has 480 places, 3275 transitions, 81311 flow [2023-11-30 07:23:28,392 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:28,392 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:28,392 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:28,392 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-30 07:23:28,393 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:28,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash -896016060, now seen corresponding path program 4 times [2023-11-30 07:23:28,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:28,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55073153] [2023-11-30 07:23:28,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:28,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:28,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:28,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55073153] [2023-11-30 07:23:28,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55073153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:28,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:28,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:28,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609258493] [2023-11-30 07:23:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:28,693 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:28,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:28,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:28,694 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:28,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 3275 transitions, 81311 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:28,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:28,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:28,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:37,255 INFO L124 PetriNetUnfolderBase]: 6164/16221 cut-off events. [2023-11-30 07:23:37,255 INFO L125 PetriNetUnfolderBase]: For 292109/299638 co-relation queries the response was YES. [2023-11-30 07:23:37,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161588 conditions, 16221 events. 6164/16221 cut-off events. For 292109/299638 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 152297 event pairs, 628 based on Foata normal form. 142/14530 useless extension candidates. Maximal degree in co-relation 160809. Up to 9232 conditions per place. [2023-11-30 07:23:37,411 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 3349 selfloop transitions, 291 changer transitions 0/3776 dead transitions. [2023-11-30 07:23:37,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 3776 transitions, 100579 flow [2023-11-30 07:23:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-30 07:23:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-30 07:23:37,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2047 transitions. [2023-11-30 07:23:37,414 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6416927899686521 [2023-11-30 07:23:37,414 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2047 transitions. [2023-11-30 07:23:37,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2047 transitions. [2023-11-30 07:23:37,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:37,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2047 transitions. [2023-11-30 07:23:37,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 70.58620689655173) internal successors, (2047), 29 states have internal predecessors, (2047), 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 07:23:37,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 110.0) internal successors, (3300), 30 states have internal predecessors, (3300), 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 07:23:37,419 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 110.0) internal successors, (3300), 30 states have internal predecessors, (3300), 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 07:23:37,419 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 401 predicate places. [2023-11-30 07:23:37,419 INFO L500 AbstractCegarLoop]: Abstraction has has 508 places, 3776 transitions, 100579 flow [2023-11-30 07:23:37,419 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:37,420 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:37,420 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:37,420 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-30 07:23:37,420 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:37,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1507089512, now seen corresponding path program 5 times [2023-11-30 07:23:37,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:37,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326680659] [2023-11-30 07:23:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:37,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:37,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326680659] [2023-11-30 07:23:37,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326680659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:37,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:37,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:37,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891631103] [2023-11-30 07:23:37,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:37,691 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:37,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:37,692 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:37,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 3776 transitions, 100579 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:37,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:37,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:37,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:49,372 INFO L124 PetriNetUnfolderBase]: 6672/17452 cut-off events. [2023-11-30 07:23:49,372 INFO L125 PetriNetUnfolderBase]: For 357117/369092 co-relation queries the response was YES. [2023-11-30 07:23:49,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187179 conditions, 17452 events. 6672/17452 cut-off events. For 357117/369092 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 166167 event pairs, 639 based on Foata normal form. 307/15777 useless extension candidates. Maximal degree in co-relation 186382. Up to 10086 conditions per place. [2023-11-30 07:23:49,541 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 3569 selfloop transitions, 558 changer transitions 0/4263 dead transitions. [2023-11-30 07:23:49,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 4263 transitions, 121275 flow [2023-11-30 07:23:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-30 07:23:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-30 07:23:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 2729 transitions. [2023-11-30 07:23:49,544 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6361305361305362 [2023-11-30 07:23:49,544 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 2729 transitions. [2023-11-30 07:23:49,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 2729 transitions. [2023-11-30 07:23:49,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:49,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 2729 transitions. [2023-11-30 07:23:49,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 69.97435897435898) internal successors, (2729), 39 states have internal predecessors, (2729), 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 07:23:49,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:23:49,552 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:23:49,552 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 439 predicate places. [2023-11-30 07:23:49,552 INFO L500 AbstractCegarLoop]: Abstraction has has 546 places, 4263 transitions, 121275 flow [2023-11-30 07:23:49,553 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:49,553 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:49,553 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:49,553 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-30 07:23:49,553 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:23:49,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1760706578, now seen corresponding path program 6 times [2023-11-30 07:23:49,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:49,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018744638] [2023-11-30 07:23:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:49,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:23:49,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:49,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018744638] [2023-11-30 07:23:49,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018744638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:23:49,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:23:49,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:23:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188823912] [2023-11-30 07:23:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:23:49,982 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:23:49,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:23:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:23:49,987 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:23:49,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 4263 transitions, 121275 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:23:49,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:49,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:23:49,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:24:02,646 INFO L124 PetriNetUnfolderBase]: 7260/18945 cut-off events. [2023-11-30 07:24:02,646 INFO L125 PetriNetUnfolderBase]: For 419933/433443 co-relation queries the response was YES. [2023-11-30 07:24:02,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216724 conditions, 18945 events. 7260/18945 cut-off events. For 419933/433443 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 183313 event pairs, 666 based on Foata normal form. 128/16927 useless extension candidates. Maximal degree in co-relation 215909. Up to 11292 conditions per place. [2023-11-30 07:24:02,836 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 4254 selfloop transitions, 283 changer transitions 0/4673 dead transitions. [2023-11-30 07:24:02,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 4673 transitions, 141991 flow [2023-11-30 07:24:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-30 07:24:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-30 07:24:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1645 transitions. [2023-11-30 07:24:02,838 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.650197628458498 [2023-11-30 07:24:02,838 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1645 transitions. [2023-11-30 07:24:02,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1645 transitions. [2023-11-30 07:24:02,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:24:02,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1645 transitions. [2023-11-30 07:24:02,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 71.52173913043478) internal successors, (1645), 23 states have internal predecessors, (1645), 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 07:24:02,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 110.0) internal successors, (2640), 24 states have internal predecessors, (2640), 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 07:24:02,842 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 110.0) internal successors, (2640), 24 states have internal predecessors, (2640), 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 07:24:02,843 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 461 predicate places. [2023-11-30 07:24:02,843 INFO L500 AbstractCegarLoop]: Abstraction has has 568 places, 4673 transitions, 141991 flow [2023-11-30 07:24:02,843 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:24:02,843 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:24:02,843 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:24:02,843 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-30 07:24:02,843 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:24:02,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:24:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash -989111460, now seen corresponding path program 7 times [2023-11-30 07:24:02,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:24:02,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680227874] [2023-11-30 07:24:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:24:02,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:24:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:24:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:24:03,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:24:03,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680227874] [2023-11-30 07:24:03,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680227874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:24:03,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:24:03,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:24:03,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794156596] [2023-11-30 07:24:03,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:24:03,115 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:24:03,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:24:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:24:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:24:03,116 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:24:03,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 4673 transitions, 141991 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:24:03,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:24:03,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:24:03,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:24:20,641 INFO L124 PetriNetUnfolderBase]: 7651/19949 cut-off events. [2023-11-30 07:24:20,641 INFO L125 PetriNetUnfolderBase]: For 467192/481743 co-relation queries the response was YES. [2023-11-30 07:24:20,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242704 conditions, 19949 events. 7651/19949 cut-off events. For 467192/481743 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 194776 event pairs, 697 based on Foata normal form. 553/18253 useless extension candidates. Maximal degree in co-relation 241871. Up to 12007 conditions per place. [2023-11-30 07:24:20,876 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 4053 selfloop transitions, 809 changer transitions 0/4998 dead transitions. [2023-11-30 07:24:20,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 4998 transitions, 161475 flow [2023-11-30 07:24:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-30 07:24:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-11-30 07:24:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 2762 transitions. [2023-11-30 07:24:20,878 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6277272727272727 [2023-11-30 07:24:20,878 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 2762 transitions. [2023-11-30 07:24:20,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 2762 transitions. [2023-11-30 07:24:20,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:24:20,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 2762 transitions. [2023-11-30 07:24:20,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 69.05) internal successors, (2762), 40 states have internal predecessors, (2762), 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 07:24:20,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 110.0) internal successors, (4510), 41 states have internal predecessors, (4510), 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 07:24:20,885 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 110.0) internal successors, (4510), 41 states have internal predecessors, (4510), 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 07:24:20,885 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 500 predicate places. [2023-11-30 07:24:20,885 INFO L500 AbstractCegarLoop]: Abstraction has has 607 places, 4998 transitions, 161475 flow [2023-11-30 07:24:20,885 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:24:20,885 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:24:20,885 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:24:20,886 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-30 07:24:20,886 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:24:20,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:24:20,886 INFO L85 PathProgramCache]: Analyzing trace with hash 321050088, now seen corresponding path program 8 times [2023-11-30 07:24:20,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:24:20,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911322153] [2023-11-30 07:24:20,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:24:20,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:24:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:24:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:24:21,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:24:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911322153] [2023-11-30 07:24:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911322153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:24:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:24:21,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:24:21,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248290500] [2023-11-30 07:24:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:24:21,322 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:24:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:24:21,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:24:21,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:24:21,323 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:24:21,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 4998 transitions, 161475 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:24:21,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:24:21,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:24:21,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:24:41,376 INFO L124 PetriNetUnfolderBase]: 8658/22303 cut-off events. [2023-11-30 07:24:41,377 INFO L125 PetriNetUnfolderBase]: For 571688/588718 co-relation queries the response was YES. [2023-11-30 07:24:41,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290172 conditions, 22303 events. 8658/22303 cut-off events. For 571688/588718 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 219539 event pairs, 672 based on Foata normal form. 701/20490 useless extension candidates. Maximal degree in co-relation 289321. Up to 13763 conditions per place. [2023-11-30 07:24:41,601 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 4532 selfloop transitions, 1146 changer transitions 0/5814 dead transitions. [2023-11-30 07:24:41,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 5814 transitions, 199413 flow [2023-11-30 07:24:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-30 07:24:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-30 07:24:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 2735 transitions. [2023-11-30 07:24:41,604 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6375291375291375 [2023-11-30 07:24:41,604 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 2735 transitions. [2023-11-30 07:24:41,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 2735 transitions. [2023-11-30 07:24:41,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:24:41,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 2735 transitions. [2023-11-30 07:24:41,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 70.12820512820512) internal successors, (2735), 39 states have internal predecessors, (2735), 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 07:24:41,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:24:41,610 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:24:41,610 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 538 predicate places. [2023-11-30 07:24:41,610 INFO L500 AbstractCegarLoop]: Abstraction has has 645 places, 5814 transitions, 199413 flow [2023-11-30 07:24:41,610 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:24:41,610 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:24:41,610 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:24:41,610 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-30 07:24:41,610 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:24:41,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:24:41,611 INFO L85 PathProgramCache]: Analyzing trace with hash 942290133, now seen corresponding path program 5 times [2023-11-30 07:24:41,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:24:41,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114051984] [2023-11-30 07:24:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:24:41,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:24:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:24:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:24:41,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:24:41,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114051984] [2023-11-30 07:24:41,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114051984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:24:41,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:24:41,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:24:41,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952746559] [2023-11-30 07:24:41,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:24:41,857 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:24:41,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:24:41,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:24:41,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:24:41,857 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:24:41,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 5814 transitions, 199413 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:24:41,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:24:41,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:24:41,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:25:11,068 INFO L124 PetriNetUnfolderBase]: 9715/24944 cut-off events. [2023-11-30 07:25:11,068 INFO L125 PetriNetUnfolderBase]: For 705743/729718 co-relation queries the response was YES. [2023-11-30 07:25:11,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343558 conditions, 24944 events. 9715/24944 cut-off events. For 705743/729718 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 250027 event pairs, 693 based on Foata normal form. 198/22400 useless extension candidates. Maximal degree in co-relation 342689. Up to 15459 conditions per place. [2023-11-30 07:25:11,367 INFO L140 encePairwiseOnDemand]: 89/110 looper letters, 6024 selfloop transitions, 528 changer transitions 0/6705 dead transitions. [2023-11-30 07:25:11,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 6705 transitions, 243619 flow [2023-11-30 07:25:11,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-30 07:25:11,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-30 07:25:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 2714 transitions. [2023-11-30 07:25:11,370 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6492822966507177 [2023-11-30 07:25:11,370 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 2714 transitions. [2023-11-30 07:25:11,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 2714 transitions. [2023-11-30 07:25:11,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:25:11,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 2714 transitions. [2023-11-30 07:25:11,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 71.42105263157895) internal successors, (2714), 38 states have internal predecessors, (2714), 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 07:25:11,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:25:11,375 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:25:11,376 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 575 predicate places. [2023-11-30 07:25:11,376 INFO L500 AbstractCegarLoop]: Abstraction has has 682 places, 6705 transitions, 243619 flow [2023-11-30 07:25:11,376 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:25:11,376 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:25:11,376 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:25:11,376 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-30 07:25:11,376 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:25:11,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:25:11,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1629643891, now seen corresponding path program 6 times [2023-11-30 07:25:11,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:25:11,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614633089] [2023-11-30 07:25:11,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:25:11,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:25:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:25:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:25:11,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:25:11,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614633089] [2023-11-30 07:25:11,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614633089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:25:11,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:25:11,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:25:11,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303241300] [2023-11-30 07:25:11,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:25:11,623 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:25:11,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:25:11,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:25:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:25:11,624 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:25:11,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 6705 transitions, 243619 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:25:11,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:25:11,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:25:11,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:25:51,860 INFO L124 PetriNetUnfolderBase]: 10265/26336 cut-off events. [2023-11-30 07:25:51,860 INFO L125 PetriNetUnfolderBase]: For 816507/844774 co-relation queries the response was YES. [2023-11-30 07:25:51,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381829 conditions, 26336 events. 10265/26336 cut-off events. For 816507/844774 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 266557 event pairs, 699 based on Foata normal form. 283/23723 useless extension candidates. Maximal degree in co-relation 380942. Up to 16404 conditions per place. [2023-11-30 07:25:52,197 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 6416 selfloop transitions, 606 changer transitions 0/7175 dead transitions. [2023-11-30 07:25:52,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 7175 transitions, 275095 flow [2023-11-30 07:25:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-30 07:25:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-30 07:25:52,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2297 transitions. [2023-11-30 07:25:52,199 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6525568181818182 [2023-11-30 07:25:52,199 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 2297 transitions. [2023-11-30 07:25:52,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 2297 transitions. [2023-11-30 07:25:52,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:25:52,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 2297 transitions. [2023-11-30 07:25:52,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 71.78125) internal successors, (2297), 32 states have internal predecessors, (2297), 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 07:25:52,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 110.0) internal successors, (3630), 33 states have internal predecessors, (3630), 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 07:25:52,203 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 110.0) internal successors, (3630), 33 states have internal predecessors, (3630), 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 07:25:52,204 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 606 predicate places. [2023-11-30 07:25:52,204 INFO L500 AbstractCegarLoop]: Abstraction has has 713 places, 7175 transitions, 275095 flow [2023-11-30 07:25:52,204 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:25:52,204 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:25:52,204 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:25:52,204 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-30 07:25:52,204 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:25:52,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:25:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1570532331, now seen corresponding path program 7 times [2023-11-30 07:25:52,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:25:52,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071700273] [2023-11-30 07:25:52,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:25:52,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:25:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:25:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:25:52,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:25:52,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071700273] [2023-11-30 07:25:52,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071700273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:25:52,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:25:52,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:25:52,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465625550] [2023-11-30 07:25:52,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:25:52,465 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:25:52,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:25:52,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:25:52,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:25:52,465 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:25:52,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 7175 transitions, 275095 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:25:52,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:25:52,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:25:52,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:26:41,175 INFO L124 PetriNetUnfolderBase]: 10789/27714 cut-off events. [2023-11-30 07:26:41,175 INFO L125 PetriNetUnfolderBase]: For 941305/974937 co-relation queries the response was YES. [2023-11-30 07:26:41,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421419 conditions, 27714 events. 10789/27714 cut-off events. For 941305/974937 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 283026 event pairs, 679 based on Foata normal form. 546/25215 useless extension candidates. Maximal degree in co-relation 420514. Up to 17313 conditions per place. [2023-11-30 07:26:41,514 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 6375 selfloop transitions, 1079 changer transitions 0/7607 dead transitions. [2023-11-30 07:26:41,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 7607 transitions, 306883 flow [2023-11-30 07:26:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-30 07:26:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-30 07:26:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 2743 transitions. [2023-11-30 07:26:41,516 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6562200956937799 [2023-11-30 07:26:41,516 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 2743 transitions. [2023-11-30 07:26:41,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 2743 transitions. [2023-11-30 07:26:41,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:26:41,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 2743 transitions. [2023-11-30 07:26:41,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 72.1842105263158) internal successors, (2743), 38 states have internal predecessors, (2743), 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 07:26:41,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:26:41,521 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 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 07:26:41,522 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 643 predicate places. [2023-11-30 07:26:41,522 INFO L500 AbstractCegarLoop]: Abstraction has has 750 places, 7607 transitions, 306883 flow [2023-11-30 07:26:41,522 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:26:41,522 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:26:41,522 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:26:41,522 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-30 07:26:41,522 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:26:41,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:26:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1259113351, now seen corresponding path program 8 times [2023-11-30 07:26:41,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:26:41,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198276020] [2023-11-30 07:26:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:26:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:26:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:26:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:26:41,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:26:41,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198276020] [2023-11-30 07:26:41,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198276020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:26:41,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:26:41,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:26:41,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399710905] [2023-11-30 07:26:41,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:26:41,771 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:26:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:26:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:26:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:26:41,772 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:26:41,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 7607 transitions, 306883 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:26:41,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:26:41,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:26:41,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:27:38,410 INFO L124 PetriNetUnfolderBase]: 11773/30226 cut-off events. [2023-11-30 07:27:38,411 INFO L125 PetriNetUnfolderBase]: For 1121034/1159392 co-relation queries the response was YES. [2023-11-30 07:27:38,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481476 conditions, 30226 events. 11773/30226 cut-off events. For 1121034/1159392 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 313225 event pairs, 697 based on Foata normal form. 240/27193 useless extension candidates. Maximal degree in co-relation 480553. Up to 18973 conditions per place. [2023-11-30 07:27:38,833 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 7694 selfloop transitions, 562 changer transitions 0/8409 dead transitions. [2023-11-30 07:27:38,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 778 places, 8409 transitions, 356239 flow [2023-11-30 07:27:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-30 07:27:38,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-30 07:27:38,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2091 transitions. [2023-11-30 07:27:38,835 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6554858934169279 [2023-11-30 07:27:38,835 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2091 transitions. [2023-11-30 07:27:38,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2091 transitions. [2023-11-30 07:27:38,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:27:38,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2091 transitions. [2023-11-30 07:27:38,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 72.10344827586206) internal successors, (2091), 29 states have internal predecessors, (2091), 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 07:27:38,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 110.0) internal successors, (3300), 30 states have internal predecessors, (3300), 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 07:27:38,839 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 110.0) internal successors, (3300), 30 states have internal predecessors, (3300), 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 07:27:38,840 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 671 predicate places. [2023-11-30 07:27:38,840 INFO L500 AbstractCegarLoop]: Abstraction has has 778 places, 8409 transitions, 356239 flow [2023-11-30 07:27:38,840 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:27:38,840 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:27:38,840 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:38,840 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-30 07:27:38,840 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:27:38,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:27:38,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1941062871, now seen corresponding path program 9 times [2023-11-30 07:27:38,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:27:38,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378535595] [2023-11-30 07:27:38,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:27:38,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:27:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:27:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:27:39,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:27:39,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378535595] [2023-11-30 07:27:39,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378535595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:27:39,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:27:39,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:27:39,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197152114] [2023-11-30 07:27:39,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:27:39,087 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:27:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:27:39,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:27:39,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:27:39,088 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:27:39,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 8409 transitions, 356239 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:27:39,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:27:39,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:27:39,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:28:53,323 INFO L124 PetriNetUnfolderBase]: 12303/31581 cut-off events. [2023-11-30 07:28:53,323 INFO L125 PetriNetUnfolderBase]: For 1276876/1322656 co-relation queries the response was YES. [2023-11-30 07:28:53,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525874 conditions, 31581 events. 12303/31581 cut-off events. For 1276876/1322656 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 329935 event pairs, 735 based on Foata normal form. 565/28724 useless extension candidates. Maximal degree in co-relation 524933. Up to 19886 conditions per place. [2023-11-30 07:28:53,748 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 7540 selfloop transitions, 1151 changer transitions 0/8844 dead transitions. [2023-11-30 07:28:53,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 8844 transitions, 392347 flow [2023-11-30 07:28:53,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-30 07:28:53,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-30 07:28:53,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 2779 transitions. [2023-11-30 07:28:53,750 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6477855477855478 [2023-11-30 07:28:53,750 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 2779 transitions. [2023-11-30 07:28:53,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 2779 transitions. [2023-11-30 07:28:53,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:28:53,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 2779 transitions. [2023-11-30 07:28:53,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 71.25641025641026) internal successors, (2779), 39 states have internal predecessors, (2779), 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 07:28:53,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:28:53,755 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:28:53,756 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 709 predicate places. [2023-11-30 07:28:53,756 INFO L500 AbstractCegarLoop]: Abstraction has has 816 places, 8844 transitions, 392347 flow [2023-11-30 07:28:53,756 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:28:53,756 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:28:53,756 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:28:53,756 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-30 07:28:53,756 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:28:53,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:28:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1055028157, now seen corresponding path program 10 times [2023-11-30 07:28:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:28:53,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190430710] [2023-11-30 07:28:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:28:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:28:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:28:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:28:53,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:28:53,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190430710] [2023-11-30 07:28:53,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190430710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:28:53,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:28:53,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:28:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496489221] [2023-11-30 07:28:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:28:53,990 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:28:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:28:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:28:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:28:53,990 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 110 [2023-11-30 07:28:53,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 816 places, 8844 transitions, 392347 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:28:53,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:28:53,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 110 [2023-11-30 07:28:53,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:30:31,900 INFO L124 PetriNetUnfolderBase]: 13479/34597 cut-off events. [2023-11-30 07:30:31,900 INFO L125 PetriNetUnfolderBase]: For 1531774/1582274 co-relation queries the response was YES. [2023-11-30 07:30:32,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600276 conditions, 34597 events. 13479/34597 cut-off events. For 1531774/1582274 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 365627 event pairs, 667 based on Foata normal form. 1364/32370 useless extension candidates. Maximal degree in co-relation 599317. Up to 21776 conditions per place. [2023-11-30 07:30:32,434 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 7717 selfloop transitions, 2242 changer transitions 0/10112 dead transitions. [2023-11-30 07:30:32,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 10112 transitions, 468953 flow [2023-11-30 07:30:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-30 07:30:32,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-30 07:30:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 2781 transitions. [2023-11-30 07:30:32,437 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6482517482517482 [2023-11-30 07:30:32,437 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 2781 transitions. [2023-11-30 07:30:32,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 2781 transitions. [2023-11-30 07:30:32,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:30:32,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 2781 transitions. [2023-11-30 07:30:32,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 71.3076923076923) internal successors, (2781), 39 states have internal predecessors, (2781), 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 07:30:32,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:30:32,442 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 110.0) internal successors, (4400), 40 states have internal predecessors, (4400), 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 07:30:32,442 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 747 predicate places. [2023-11-30 07:30:32,442 INFO L500 AbstractCegarLoop]: Abstraction has has 854 places, 10112 transitions, 468953 flow [2023-11-30 07:30:32,442 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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 07:30:32,443 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:30:32,443 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:32,443 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-30 07:30:32,443 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:30:32,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:30:32,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1098711216, now seen corresponding path program 1 times [2023-11-30 07:30:32,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:30:32,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018524670] [2023-11-30 07:30:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:30:32,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:30:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:30:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:30:32,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:30:32,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018524670] [2023-11-30 07:30:32,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018524670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:30:32,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:30:32,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-30 07:30:32,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089154821] [2023-11-30 07:30:32,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:30:32,736 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 07:30:32,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:30:32,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 07:30:32,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-30 07:30:32,737 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 110 [2023-11-30 07:30:32,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 854 places, 10112 transitions, 468953 flow. Second operand has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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 07:30:32,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:30:32,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 110 [2023-11-30 07:30:32,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:32:25,229 INFO L124 PetriNetUnfolderBase]: 13990/35682 cut-off events. [2023-11-30 07:32:25,229 INFO L125 PetriNetUnfolderBase]: For 1627333/1664637 co-relation queries the response was YES. [2023-11-30 07:32:25,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645149 conditions, 35682 events. 13990/35682 cut-off events. For 1627333/1664637 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 377611 event pairs, 580 based on Foata normal form. 245/32308 useless extension candidates. Maximal degree in co-relation 644172. Up to 23561 conditions per place. [2023-11-30 07:32:25,742 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 10016 selfloop transitions, 507 changer transitions 0/10647 dead transitions. [2023-11-30 07:32:25,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 886 places, 10647 transitions, 513505 flow [2023-11-30 07:32:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-30 07:32:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-11-30 07:32:25,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2288 transitions. [2023-11-30 07:32:25,744 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2023-11-30 07:32:25,744 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2288 transitions. [2023-11-30 07:32:25,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2288 transitions. [2023-11-30 07:32:25,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:32:25,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2288 transitions. [2023-11-30 07:32:25,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 69.33333333333333) internal successors, (2288), 33 states have internal predecessors, (2288), 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 07:32:25,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 110.0) internal successors, (3740), 34 states have internal predecessors, (3740), 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 07:32:25,749 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 110.0) internal successors, (3740), 34 states have internal predecessors, (3740), 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 07:32:25,749 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 779 predicate places. [2023-11-30 07:32:25,749 INFO L500 AbstractCegarLoop]: Abstraction has has 886 places, 10647 transitions, 513505 flow [2023-11-30 07:32:25,749 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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 07:32:25,749 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:32:25,749 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:25,749 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-30 07:32:25,749 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:32:25,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:32:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash -31038452, now seen corresponding path program 1 times [2023-11-30 07:32:25,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:32:25,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973947984] [2023-11-30 07:32:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:32:25,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:32:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:32:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:32:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:32:26,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973947984] [2023-11-30 07:32:26,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973947984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:32:26,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:32:26,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-30 07:32:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012325627] [2023-11-30 07:32:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:32:26,042 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 07:32:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:32:26,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 07:32:26,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-30 07:32:26,043 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 110 [2023-11-30 07:32:26,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 886 places, 10647 transitions, 513505 flow. Second operand has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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 07:32:26,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:32:26,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 110 [2023-11-30 07:32:26,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:34:37,446 INFO L124 PetriNetUnfolderBase]: 13962/35605 cut-off events. [2023-11-30 07:34:37,446 INFO L125 PetriNetUnfolderBase]: For 1760331/1810365 co-relation queries the response was YES. [2023-11-30 07:34:37,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670797 conditions, 35605 events. 13962/35605 cut-off events. For 1760331/1810365 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 375802 event pairs, 652 based on Foata normal form. 389/32397 useless extension candidates. Maximal degree in co-relation 669802. Up to 23502 conditions per place. [2023-11-30 07:34:37,978 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 10008 selfloop transitions, 671 changer transitions 0/10803 dead transitions. [2023-11-30 07:34:37,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 10803 transitions, 540975 flow [2023-11-30 07:34:37,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-30 07:34:37,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-11-30 07:34:37,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2451 transitions. [2023-11-30 07:34:37,980 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6366233766233766 [2023-11-30 07:34:37,980 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 2451 transitions. [2023-11-30 07:34:37,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 2451 transitions. [2023-11-30 07:34:37,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:34:37,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 2451 transitions. [2023-11-30 07:34:37,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 70.02857142857142) internal successors, (2451), 35 states have internal predecessors, (2451), 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 07:34:37,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 110.0) internal successors, (3960), 36 states have internal predecessors, (3960), 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 07:34:37,985 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 110.0) internal successors, (3960), 36 states have internal predecessors, (3960), 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 07:34:37,985 INFO L307 CegarLoopForPetriNet]: 107 programPoint places, 813 predicate places. [2023-11-30 07:34:37,985 INFO L500 AbstractCegarLoop]: Abstraction has has 920 places, 10803 transitions, 540975 flow [2023-11-30 07:34:37,985 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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 07:34:37,985 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:34:37,985 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:37,985 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-30 07:34:37,986 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:34:37,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:34:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1188291138, now seen corresponding path program 2 times [2023-11-30 07:34:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:34:37,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943970756] [2023-11-30 07:34:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:34:37,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:34:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:34:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:34:38,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:34:38,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943970756] [2023-11-30 07:34:38,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943970756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:34:38,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:34:38,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-30 07:34:38,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258663399] [2023-11-30 07:34:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:34:38,254 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 07:34:38,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:34:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 07:34:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-30 07:34:38,255 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 110 [2023-11-30 07:34:38,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 920 places, 10803 transitions, 540975 flow. Second operand has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 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 07:34:38,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:34:38,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 110 [2023-11-30 07:34:38,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 07:36:53,277 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 07:36:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-30 07:36:53,384 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 17 remaining) [2023-11-30 07:36:53,384 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-30 07:36:53,384 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2023-11-30 07:36:53,386 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2023-11-30 07:36:53,387 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2023-11-30 07:36:53,387 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2023-11-30 07:36:53,387 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2023-11-30 07:36:53,387 INFO L457 BasicCegarLoop]: Path program histogram: [10, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:36:53,390 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:36:53,391 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:36:53,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:36:53 BasicIcfg [2023-11-30 07:36:53,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:36:53,394 INFO L158 Benchmark]: Toolchain (without parser) took 844762.80ms. Allocated memory was 511.7MB in the beginning and 5.7GB in the end (delta: 5.2GB). Free memory was 463.1MB in the beginning and 2.3GB in the end (delta: -1.8GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2023-11-30 07:36:53,394 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 352.3MB. Free memory is still 300.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:36:53,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.84ms. Allocated memory is still 511.7MB. Free memory was 463.1MB in the beginning and 434.9MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 07:36:53,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.07ms. Allocated memory is still 511.7MB. Free memory was 434.9MB in the beginning and 432.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:36:53,394 INFO L158 Benchmark]: Boogie Preprocessor took 31.62ms. Allocated memory is still 511.7MB. Free memory was 432.4MB in the beginning and 430.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:36:53,394 INFO L158 Benchmark]: RCFGBuilder took 374.25ms. Allocated memory is still 511.7MB. Free memory was 430.8MB in the beginning and 413.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-11-30 07:36:53,395 INFO L158 Benchmark]: TraceAbstraction took 843854.37ms. Allocated memory was 511.7MB in the beginning and 5.7GB in the end (delta: 5.2GB). Free memory was 412.8MB in the beginning and 2.3GB in the end (delta: -1.9GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2023-11-30 07:36:53,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 352.3MB. Free memory is still 300.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 443.84ms. Allocated memory is still 511.7MB. Free memory was 463.1MB in the beginning and 434.9MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.07ms. Allocated memory is still 511.7MB. Free memory was 434.9MB in the beginning and 432.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.62ms. Allocated memory is still 511.7MB. Free memory was 432.4MB in the beginning and 430.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 374.25ms. Allocated memory is still 511.7MB. Free memory was 430.8MB in the beginning and 413.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 843854.37ms. Allocated memory was 511.7MB in the beginning and 5.7GB in the end (delta: 5.2GB). Free memory was 412.8MB in the beginning and 2.3GB in the end (delta: -1.9GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 932]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 932]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 939]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 939]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 937]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 937]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 936]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 928]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - TimeoutResultAtElement [Line: 928]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (16states, 60/110 universal loopers) in iteration 34,while PetriNetUnfolder was constructing finite prefix that currently has 683014 conditions, 34622 events (13596/34621 cut-off events. For 1796072/1851823 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 367562 event pairs, 601 based on Foata normal form. 320/31683 useless extension candidates. Maximal degree in co-relation 682001. Up to 22915 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 138 locations, 17 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 843.8s, OverallIterations: 34, TraceHistogramMax: 10, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 832.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11367 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11367 mSDsluCounter, 10956 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9477 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17371 IncrementalHoareTripleChecker+Invalid, 17568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 1479 mSDtfsCounter, 17371 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1596 GetRequests, 479 SyntacticMatches, 11 SemanticMatches, 1106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10454 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540975occurred in iteration=33, InterpolantAutomatonStates: 848, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 3479 NumberOfCodeBlocks, 3409 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3597 ConstructedInterpolants, 4 QuantifiedInterpolants, 33276 SizeOfPredicates, 41 NumberOfNonLiveVariables, 652 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 44 InterpolantComputations, 31 PerfectInterpolantSequences, 8313/9033 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown