/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/04-mutex_17-ps_add1_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:21:16,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:21:17,015 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 07:21:17,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:21:17,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:21:17,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:21:17,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:21:17,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:21:17,041 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:21:17,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:21:17,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:21:17,044 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:21:17,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:21:17,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:21:17,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:21:17,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:21:17,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:21:17,046 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:21:17,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:21:17,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:21:17,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:21:17,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:21:17,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:21:17,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:21:17,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:21:17,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:21:17,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:21:17,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:21:17,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:21:17,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:21:17,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:21:17,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:21:17,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:21:17,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-11-30 07:21:18,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:21:18,351 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:21:18,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-11-30 07:21:18,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd88e61f7/90d6702117884093a441fd0f56f39f8c/FLAG354bba20c [2023-11-30 07:21:18,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd88e61f7/90d6702117884093a441fd0f56f39f8c [2023-11-30 07:21:18,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:21:18,375 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:21:18,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:21:18,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:21:18,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:21:18,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40023059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18, skipping insertion in model container [2023-11-30 07:21:18,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,429 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:21:18,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:21:18,726 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:21:18,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:21:18,818 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:21:18,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18 WrapperNode [2023-11-30 07:21:18,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:21:18,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:21:18,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:21:18,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:21:18,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,864 INFO L138 Inliner]: procedures = 267, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-11-30 07:21:18,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:21:18,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:21:18,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:21:18,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:21:18,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:21:18,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:21:18,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:21:18,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:21:18,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (1/1) ... [2023-11-30 07:21:18,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:21:18,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:18,918 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 07:21:18,944 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 07:21:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:21:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:21:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:21:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:21:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:21:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:21:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:21:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:21:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:21:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:21:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:21:18,952 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 07:21:19,051 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:21:19,053 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:21:19,187 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:21:19,200 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:21:19,200 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:21:19,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:21:19 BoogieIcfgContainer [2023-11-30 07:21:19,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:21:19,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:21:19,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:21:19,206 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:21:19,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:21:18" (1/3) ... [2023-11-30 07:21:19,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b789f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:21:19, skipping insertion in model container [2023-11-30 07:21:19,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:18" (2/3) ... [2023-11-30 07:21:19,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b789f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:21:19, skipping insertion in model container [2023-11-30 07:21:19,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:21:19" (3/3) ... [2023-11-30 07:21:19,208 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2023-11-30 07:21:19,220 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:21:19,221 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-30 07:21:19,221 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:21:19,278 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 07:21:19,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 178 flow [2023-11-30 07:21:19,333 INFO L124 PetriNetUnfolderBase]: 4/86 cut-off events. [2023-11-30 07:21:19,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:21:19,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 4/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 119 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-30 07:21:19,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 87 transitions, 178 flow [2023-11-30 07:21:19,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 86 transitions, 175 flow [2023-11-30 07:21:19,351 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:21:19,355 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;@3cf51002, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:21:19,355 INFO L363 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-30 07:21:19,361 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:21:19,361 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2023-11-30 07:21:19,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:21:19,362 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:19,362 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] [2023-11-30 07:21:19,362 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:19,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash 888454799, now seen corresponding path program 1 times [2023-11-30 07:21:19,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:19,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642775845] [2023-11-30 07:21:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:19,687 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 07:21:19,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:19,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642775845] [2023-11-30 07:21:19,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642775845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:19,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:19,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678933771] [2023-11-30 07:21:19,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:19,695 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:19,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:19,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:19,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:19,723 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2023-11-30 07:21:19,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:19,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:19,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2023-11-30 07:21:19,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:19,876 INFO L124 PetriNetUnfolderBase]: 65/367 cut-off events. [2023-11-30 07:21:19,876 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:21:19,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 367 events. 65/367 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1914 event pairs, 18 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 456. Up to 51 conditions per place. [2023-11-30 07:21:19,879 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 28 selfloop transitions, 6 changer transitions 6/107 dead transitions. [2023-11-30 07:21:19,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 107 transitions, 289 flow [2023-11-30 07:21:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 400 transitions. [2023-11-30 07:21:19,893 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2023-11-30 07:21:19,894 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 400 transitions. [2023-11-30 07:21:19,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 400 transitions. [2023-11-30 07:21:19,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:19,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 400 transitions. [2023-11-30 07:21:19,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:19,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:19,903 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:19,905 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2023-11-30 07:21:19,906 INFO L500 AbstractCegarLoop]: Abstraction has has 90 places, 107 transitions, 289 flow [2023-11-30 07:21:19,906 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:19,906 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:19,906 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] [2023-11-30 07:21:19,906 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:21:19,906 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:19,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1193165687, now seen corresponding path program 1 times [2023-11-30 07:21:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556474367] [2023-11-30 07:21:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:19,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:19,947 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 07:21:19,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556474367] [2023-11-30 07:21:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556474367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:19,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:19,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470832276] [2023-11-30 07:21:19,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:19,952 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:19,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:19,953 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2023-11-30 07:21:19,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 107 transitions, 289 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:19,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:19,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2023-11-30 07:21:19,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:20,089 INFO L124 PetriNetUnfolderBase]: 148/639 cut-off events. [2023-11-30 07:21:20,089 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-30 07:21:20,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 639 events. 148/639 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4099 event pairs, 45 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1105. Up to 160 conditions per place. [2023-11-30 07:21:20,096 INFO L140 encePairwiseOnDemand]: 75/87 looper letters, 45 selfloop transitions, 9 changer transitions 6/128 dead transitions. [2023-11-30 07:21:20,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 128 transitions, 459 flow [2023-11-30 07:21:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:20,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 341 transitions. [2023-11-30 07:21:20,098 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7839080459770115 [2023-11-30 07:21:20,098 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 341 transitions. [2023-11-30 07:21:20,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 341 transitions. [2023-11-30 07:21:20,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:20,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 341 transitions. [2023-11-30 07:21:20,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,101 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,102 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 8 predicate places. [2023-11-30 07:21:20,102 INFO L500 AbstractCegarLoop]: Abstraction has has 94 places, 128 transitions, 459 flow [2023-11-30 07:21:20,102 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,102 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:20,102 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] [2023-11-30 07:21:20,102 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:21:20,102 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:20,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:20,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1666569183, now seen corresponding path program 1 times [2023-11-30 07:21:20,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:20,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280420187] [2023-11-30 07:21:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:20,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:20,163 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 07:21:20,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:20,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280420187] [2023-11-30 07:21:20,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280420187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:20,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:20,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:20,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673450890] [2023-11-30 07:21:20,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:20,164 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:20,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:20,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:20,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:20,165 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2023-11-30 07:21:20,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 128 transitions, 459 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:20,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2023-11-30 07:21:20,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:20,281 INFO L124 PetriNetUnfolderBase]: 147/641 cut-off events. [2023-11-30 07:21:20,283 INFO L125 PetriNetUnfolderBase]: For 193/245 co-relation queries the response was YES. [2023-11-30 07:21:20,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 641 events. 147/641 cut-off events. For 193/245 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4160 event pairs, 39 based on Foata normal form. 9/554 useless extension candidates. Maximal degree in co-relation 1362. Up to 217 conditions per place. [2023-11-30 07:21:20,287 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 54 selfloop transitions, 8 changer transitions 7/137 dead transitions. [2023-11-30 07:21:20,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 137 transitions, 645 flow [2023-11-30 07:21:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2023-11-30 07:21:20,292 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7632183908045977 [2023-11-30 07:21:20,292 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 332 transitions. [2023-11-30 07:21:20,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 332 transitions. [2023-11-30 07:21:20,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:20,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 332 transitions. [2023-11-30 07:21:20,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,294 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,295 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 12 predicate places. [2023-11-30 07:21:20,295 INFO L500 AbstractCegarLoop]: Abstraction has has 98 places, 137 transitions, 645 flow [2023-11-30 07:21:20,295 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,296 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:20,296 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] [2023-11-30 07:21:20,296 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:21:20,296 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:20,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -170036299, now seen corresponding path program 1 times [2023-11-30 07:21:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:20,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603775226] [2023-11-30 07:21:20,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:20,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:20,393 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 07:21:20,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603775226] [2023-11-30 07:21:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603775226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:20,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:20,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 07:21:20,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418473280] [2023-11-30 07:21:20,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:20,394 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 07:21:20,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 07:21:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-30 07:21:20,395 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 87 [2023-11-30 07:21:20,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 137 transitions, 645 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:20,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 87 [2023-11-30 07:21:20,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:20,496 INFO L124 PetriNetUnfolderBase]: 150/635 cut-off events. [2023-11-30 07:21:20,497 INFO L125 PetriNetUnfolderBase]: For 398/498 co-relation queries the response was YES. [2023-11-30 07:21:20,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 635 events. 150/635 cut-off events. For 398/498 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4112 event pairs, 27 based on Foata normal form. 8/548 useless extension candidates. Maximal degree in co-relation 1616. Up to 224 conditions per place. [2023-11-30 07:21:20,500 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 54 selfloop transitions, 11 changer transitions 9/139 dead transitions. [2023-11-30 07:21:20,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 139 transitions, 805 flow [2023-11-30 07:21:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 07:21:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 07:21:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2023-11-30 07:21:20,501 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7030651340996169 [2023-11-30 07:21:20,501 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 367 transitions. [2023-11-30 07:21:20,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 367 transitions. [2023-11-30 07:21:20,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:20,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 367 transitions. [2023-11-30 07:21:20,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,504 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 16 predicate places. [2023-11-30 07:21:20,504 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 139 transitions, 805 flow [2023-11-30 07:21:20,505 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,505 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:20,505 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 07:21:20,505 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:21:20,506 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:20,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash -976157789, now seen corresponding path program 1 times [2023-11-30 07:21:20,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:20,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675780545] [2023-11-30 07:21:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:20,597 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 07:21:20,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:20,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675780545] [2023-11-30 07:21:20,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675780545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:20,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:20,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:21:20,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106961654] [2023-11-30 07:21:20,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:20,598 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:20,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:20,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:21:20,600 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 87 [2023-11-30 07:21:20,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 139 transitions, 805 flow. Second operand has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:20,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 87 [2023-11-30 07:21:20,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:20,707 INFO L124 PetriNetUnfolderBase]: 143/619 cut-off events. [2023-11-30 07:21:20,708 INFO L125 PetriNetUnfolderBase]: For 742/1104 co-relation queries the response was YES. [2023-11-30 07:21:20,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 619 events. 143/619 cut-off events. For 742/1104 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4025 event pairs, 16 based on Foata normal form. 10/536 useless extension candidates. Maximal degree in co-relation 1806. Up to 212 conditions per place. [2023-11-30 07:21:20,711 INFO L140 encePairwiseOnDemand]: 73/87 looper letters, 50 selfloop transitions, 17 changer transitions 10/142 dead transitions. [2023-11-30 07:21:20,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 142 transitions, 985 flow [2023-11-30 07:21:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 07:21:20,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 07:21:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 483 transitions. [2023-11-30 07:21:20,712 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6939655172413793 [2023-11-30 07:21:20,712 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 483 transitions. [2023-11-30 07:21:20,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 483 transitions. [2023-11-30 07:21:20,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:20,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 483 transitions. [2023-11-30 07:21:20,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 60.375) internal successors, (483), 8 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 07:21:20,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,714 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,716 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 20 predicate places. [2023-11-30 07:21:20,716 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 142 transitions, 985 flow [2023-11-30 07:21:20,717 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,717 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:20,717 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 07:21:20,717 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:21:20,717 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:20,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash 507047178, now seen corresponding path program 1 times [2023-11-30 07:21:20,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:20,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872853286] [2023-11-30 07:21:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:20,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:20,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:20,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872853286] [2023-11-30 07:21:20,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872853286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:20,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:20,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:21:20,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651462786] [2023-11-30 07:21:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:20,783 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:20,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:20,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:21:20,783 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 87 [2023-11-30 07:21:20,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 142 transitions, 985 flow. Second operand has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:20,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 87 [2023-11-30 07:21:20,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:20,879 INFO L124 PetriNetUnfolderBase]: 141/609 cut-off events. [2023-11-30 07:21:20,879 INFO L125 PetriNetUnfolderBase]: For 1108/1412 co-relation queries the response was YES. [2023-11-30 07:21:20,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2072 conditions, 609 events. 141/609 cut-off events. For 1108/1412 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3942 event pairs, 8 based on Foata normal form. 12/531 useless extension candidates. Maximal degree in co-relation 2015. Up to 212 conditions per place. [2023-11-30 07:21:20,882 INFO L140 encePairwiseOnDemand]: 75/87 looper letters, 53 selfloop transitions, 13 changer transitions 10/141 dead transitions. [2023-11-30 07:21:20,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 141 transitions, 1121 flow [2023-11-30 07:21:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 07:21:20,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 07:21:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 482 transitions. [2023-11-30 07:21:20,884 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6925287356321839 [2023-11-30 07:21:20,884 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 482 transitions. [2023-11-30 07:21:20,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 482 transitions. [2023-11-30 07:21:20,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:20,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 482 transitions. [2023-11-30 07:21:20,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 60.25) internal successors, (482), 8 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,886 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,888 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 26 predicate places. [2023-11-30 07:21:20,888 INFO L500 AbstractCegarLoop]: Abstraction has has 112 places, 141 transitions, 1121 flow [2023-11-30 07:21:20,888 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,889 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:20,889 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:20,889 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:21:20,889 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:20,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash 296769665, now seen corresponding path program 1 times [2023-11-30 07:21:20,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:20,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661579592] [2023-11-30 07:21:20,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:20,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:20,947 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 07:21:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661579592] [2023-11-30 07:21:20,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661579592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:20,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:20,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:20,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858522158] [2023-11-30 07:21:20,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:20,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:20,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:20,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:20,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:20,951 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 87 [2023-11-30 07:21:20,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 141 transitions, 1121 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:20,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:20,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 87 [2023-11-30 07:21:20,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:21,048 INFO L124 PetriNetUnfolderBase]: 198/783 cut-off events. [2023-11-30 07:21:21,048 INFO L125 PetriNetUnfolderBase]: For 2331/2595 co-relation queries the response was YES. [2023-11-30 07:21:21,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 783 events. 198/783 cut-off events. For 2331/2595 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5345 event pairs, 22 based on Foata normal form. 32/705 useless extension candidates. Maximal degree in co-relation 2787. Up to 256 conditions per place. [2023-11-30 07:21:21,052 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 63 selfloop transitions, 8 changer transitions 13/162 dead transitions. [2023-11-30 07:21:21,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 162 transitions, 1437 flow [2023-11-30 07:21:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2023-11-30 07:21:21,054 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9011494252873563 [2023-11-30 07:21:21,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 392 transitions. [2023-11-30 07:21:21,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 392 transitions. [2023-11-30 07:21:21,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:21,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 392 transitions. [2023-11-30 07:21:21,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,056 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,057 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 30 predicate places. [2023-11-30 07:21:21,057 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 162 transitions, 1437 flow [2023-11-30 07:21:21,057 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,057 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:21,057 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:21,057 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:21:21,057 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:21,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:21,058 INFO L85 PathProgramCache]: Analyzing trace with hash 609966368, now seen corresponding path program 1 times [2023-11-30 07:21:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266183785] [2023-11-30 07:21:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:21,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:21,097 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 07:21:21,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:21,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266183785] [2023-11-30 07:21:21,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266183785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:21,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:21,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:21,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681113255] [2023-11-30 07:21:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:21,098 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:21,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:21,100 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2023-11-30 07:21:21,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 162 transitions, 1437 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:21,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2023-11-30 07:21:21,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:21,211 INFO L124 PetriNetUnfolderBase]: 220/796 cut-off events. [2023-11-30 07:21:21,211 INFO L125 PetriNetUnfolderBase]: For 3663/3945 co-relation queries the response was YES. [2023-11-30 07:21:21,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3420 conditions, 796 events. 220/796 cut-off events. For 3663/3945 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5484 event pairs, 9 based on Foata normal form. 10/706 useless extension candidates. Maximal degree in co-relation 3355. Up to 336 conditions per place. [2023-11-30 07:21:21,214 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 72 selfloop transitions, 4 changer transitions 19/176 dead transitions. [2023-11-30 07:21:21,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 176 transitions, 1789 flow [2023-11-30 07:21:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions. [2023-11-30 07:21:21,215 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7609195402298851 [2023-11-30 07:21:21,216 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 331 transitions. [2023-11-30 07:21:21,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 331 transitions. [2023-11-30 07:21:21,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:21,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 331 transitions. [2023-11-30 07:21:21,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,217 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,217 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 34 predicate places. [2023-11-30 07:21:21,218 INFO L500 AbstractCegarLoop]: Abstraction has has 120 places, 176 transitions, 1789 flow [2023-11-30 07:21:21,218 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,218 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:21,218 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:21,218 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 07:21:21,218 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:21,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:21,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1729088422, now seen corresponding path program 1 times [2023-11-30 07:21:21,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:21,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207316832] [2023-11-30 07:21:21,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:21,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:21,240 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 07:21:21,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:21,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207316832] [2023-11-30 07:21:21,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207316832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:21,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:21,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:21,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783869363] [2023-11-30 07:21:21,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:21,241 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:21,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:21,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:21,242 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2023-11-30 07:21:21,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 176 transitions, 1789 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:21,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2023-11-30 07:21:21,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:21,338 INFO L124 PetriNetUnfolderBase]: 221/817 cut-off events. [2023-11-30 07:21:21,339 INFO L125 PetriNetUnfolderBase]: For 4551/4912 co-relation queries the response was YES. [2023-11-30 07:21:21,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3870 conditions, 817 events. 221/817 cut-off events. For 4551/4912 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5553 event pairs, 10 based on Foata normal form. 12/731 useless extension candidates. Maximal degree in co-relation 3801. Up to 343 conditions per place. [2023-11-30 07:21:21,343 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 66 selfloop transitions, 5 changer transitions 34/186 dead transitions. [2023-11-30 07:21:21,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 186 transitions, 2177 flow [2023-11-30 07:21:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 335 transitions. [2023-11-30 07:21:21,344 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7701149425287356 [2023-11-30 07:21:21,344 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 335 transitions. [2023-11-30 07:21:21,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 335 transitions. [2023-11-30 07:21:21,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:21,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 335 transitions. [2023-11-30 07:21:21,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,346 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,346 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 38 predicate places. [2023-11-30 07:21:21,346 INFO L500 AbstractCegarLoop]: Abstraction has has 124 places, 186 transitions, 2177 flow [2023-11-30 07:21:21,346 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,346 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:21,346 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:21,346 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 07:21:21,346 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:21,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash 165009265, now seen corresponding path program 1 times [2023-11-30 07:21:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:21,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153683346] [2023-11-30 07:21:21,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:21,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:21,371 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 07:21:21,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:21,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153683346] [2023-11-30 07:21:21,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153683346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:21,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:21,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:21,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663487844] [2023-11-30 07:21:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:21,372 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:21,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:21,373 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2023-11-30 07:21:21,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 186 transitions, 2177 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:21,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2023-11-30 07:21:21,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:21,468 INFO L124 PetriNetUnfolderBase]: 217/794 cut-off events. [2023-11-30 07:21:21,469 INFO L125 PetriNetUnfolderBase]: For 5395/5817 co-relation queries the response was YES. [2023-11-30 07:21:21,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4151 conditions, 794 events. 217/794 cut-off events. For 5395/5817 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5377 event pairs, 10 based on Foata normal form. 12/726 useless extension candidates. Maximal degree in co-relation 4078. Up to 321 conditions per place. [2023-11-30 07:21:21,473 INFO L140 encePairwiseOnDemand]: 77/87 looper letters, 64 selfloop transitions, 11 changer transitions 35/191 dead transitions. [2023-11-30 07:21:21,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 191 transitions, 2505 flow [2023-11-30 07:21:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2023-11-30 07:21:21,474 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7494252873563219 [2023-11-30 07:21:21,474 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 326 transitions. [2023-11-30 07:21:21,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 326 transitions. [2023-11-30 07:21:21,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:21,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 326 transitions. [2023-11-30 07:21:21,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,476 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,476 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 40 predicate places. [2023-11-30 07:21:21,477 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 191 transitions, 2505 flow [2023-11-30 07:21:21,477 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,477 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:21,477 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:21,477 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 07:21:21,478 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:21,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1392464774, now seen corresponding path program 1 times [2023-11-30 07:21:21,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:21,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418587483] [2023-11-30 07:21:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:21,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:21,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418587483] [2023-11-30 07:21:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418587483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:21,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:21,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:21:21,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019592116] [2023-11-30 07:21:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:21,549 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:21,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:21:21,550 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2023-11-30 07:21:21,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 191 transitions, 2505 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:21,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2023-11-30 07:21:21,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:21,706 INFO L124 PetriNetUnfolderBase]: 296/983 cut-off events. [2023-11-30 07:21:21,706 INFO L125 PetriNetUnfolderBase]: For 8462/9105 co-relation queries the response was YES. [2023-11-30 07:21:21,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5520 conditions, 983 events. 296/983 cut-off events. For 8462/9105 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6593 event pairs, 29 based on Foata normal form. 131/1016 useless extension candidates. Maximal degree in co-relation 5443. Up to 395 conditions per place. [2023-11-30 07:21:21,712 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 95 selfloop transitions, 18 changer transitions 52/229 dead transitions. [2023-11-30 07:21:21,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 229 transitions, 3407 flow [2023-11-30 07:21:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:21:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:21:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 658 transitions. [2023-11-30 07:21:21,714 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8403575989782887 [2023-11-30 07:21:21,714 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 658 transitions. [2023-11-30 07:21:21,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 658 transitions. [2023-11-30 07:21:21,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:21,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 658 transitions. [2023-11-30 07:21:21,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.11111111111111) internal successors, (658), 9 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,717 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,717 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 47 predicate places. [2023-11-30 07:21:21,717 INFO L500 AbstractCegarLoop]: Abstraction has has 133 places, 229 transitions, 3407 flow [2023-11-30 07:21:21,717 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,717 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:21,717 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:21,717 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:21:21,717 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:21,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1647491589, now seen corresponding path program 1 times [2023-11-30 07:21:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:21,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444027096] [2023-11-30 07:21:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:21,775 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 07:21:21,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444027096] [2023-11-30 07:21:21,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444027096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:21,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:21,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:21:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002572356] [2023-11-30 07:21:21,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:21,776 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:21:21,777 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2023-11-30 07:21:21,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 229 transitions, 3407 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:21,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2023-11-30 07:21:21,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:21,928 INFO L124 PetriNetUnfolderBase]: 289/926 cut-off events. [2023-11-30 07:21:21,928 INFO L125 PetriNetUnfolderBase]: For 8825/9672 co-relation queries the response was YES. [2023-11-30 07:21:21,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5759 conditions, 926 events. 289/926 cut-off events. For 8825/9672 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6015 event pairs, 1 based on Foata normal form. 49/889 useless extension candidates. Maximal degree in co-relation 5678. Up to 370 conditions per place. [2023-11-30 07:21:21,934 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 106 selfloop transitions, 20 changer transitions 52/242 dead transitions. [2023-11-30 07:21:21,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 242 transitions, 3865 flow [2023-11-30 07:21:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:21:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:21:21,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 654 transitions. [2023-11-30 07:21:21,936 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8352490421455939 [2023-11-30 07:21:21,936 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 654 transitions. [2023-11-30 07:21:21,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 654 transitions. [2023-11-30 07:21:21,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:21,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 654 transitions. [2023-11-30 07:21:21,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.66666666666667) internal successors, (654), 9 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,938 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,939 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 54 predicate places. [2023-11-30 07:21:21,939 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 242 transitions, 3865 flow [2023-11-30 07:21:21,939 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,939 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:21,939 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:21,939 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 07:21:21,939 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:21,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash 820320117, now seen corresponding path program 1 times [2023-11-30 07:21:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:21,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107994904] [2023-11-30 07:21:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:21,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:21,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107994904] [2023-11-30 07:21:21,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107994904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:21,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:21,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:21,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412039387] [2023-11-30 07:21:21,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:21,964 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:21,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:21,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:21,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:21,964 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2023-11-30 07:21:21,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 242 transitions, 3865 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:21,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:21,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2023-11-30 07:21:21,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:22,083 INFO L124 PetriNetUnfolderBase]: 283/900 cut-off events. [2023-11-30 07:21:22,083 INFO L125 PetriNetUnfolderBase]: For 10255/11044 co-relation queries the response was YES. [2023-11-30 07:21:22,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6004 conditions, 900 events. 283/900 cut-off events. For 10255/11044 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5737 event pairs, 1 based on Foata normal form. 16/850 useless extension candidates. Maximal degree in co-relation 5919. Up to 370 conditions per place. [2023-11-30 07:21:22,089 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 64 selfloop transitions, 11 changer transitions 97/242 dead transitions. [2023-11-30 07:21:22,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 242 transitions, 4155 flow [2023-11-30 07:21:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:21:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:21:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2023-11-30 07:21:22,090 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7586206896551724 [2023-11-30 07:21:22,090 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 264 transitions. [2023-11-30 07:21:22,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 264 transitions. [2023-11-30 07:21:22,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:22,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 264 transitions. [2023-11-30 07:21:22,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,091 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,092 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 56 predicate places. [2023-11-30 07:21:22,092 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 242 transitions, 4155 flow [2023-11-30 07:21:22,092 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,092 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:22,092 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:22,092 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 07:21:22,092 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:22,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash 216735207, now seen corresponding path program 1 times [2023-11-30 07:21:22,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:22,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426297456] [2023-11-30 07:21:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:22,139 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 07:21:22,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:22,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426297456] [2023-11-30 07:21:22,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426297456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:22,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:22,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:21:22,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587767310] [2023-11-30 07:21:22,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:22,140 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:22,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:22,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:22,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:21:22,141 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2023-11-30 07:21:22,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 242 transitions, 4155 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:22,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2023-11-30 07:21:22,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:22,339 INFO L124 PetriNetUnfolderBase]: 296/962 cut-off events. [2023-11-30 07:21:22,339 INFO L125 PetriNetUnfolderBase]: For 12826/14314 co-relation queries the response was YES. [2023-11-30 07:21:22,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6961 conditions, 962 events. 296/962 cut-off events. For 12826/14314 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6310 event pairs, 0 based on Foata normal form. 176/1076 useless extension candidates. Maximal degree in co-relation 6872. Up to 413 conditions per place. [2023-11-30 07:21:22,344 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 47 selfloop transitions, 5 changer transitions 146/258 dead transitions. [2023-11-30 07:21:22,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 258 transitions, 4959 flow [2023-11-30 07:21:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:21:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:21:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 924 transitions. [2023-11-30 07:21:22,347 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8169761273209549 [2023-11-30 07:21:22,347 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 924 transitions. [2023-11-30 07:21:22,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 924 transitions. [2023-11-30 07:21:22,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:22,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 924 transitions. [2023-11-30 07:21:22,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.07692307692308) internal successors, (924), 13 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,350 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,351 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 67 predicate places. [2023-11-30 07:21:22,351 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 258 transitions, 4959 flow [2023-11-30 07:21:22,351 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,351 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:22,351 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:22,351 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 07:21:22,351 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:21:22,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash -467368051, now seen corresponding path program 1 times [2023-11-30 07:21:22,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:22,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760084800] [2023-11-30 07:21:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:22,398 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 07:21:22,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:22,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760084800] [2023-11-30 07:21:22,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760084800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:22,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:22,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:21:22,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938347243] [2023-11-30 07:21:22,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:22,399 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:22,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:22,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:22,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:21:22,400 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2023-11-30 07:21:22,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 258 transitions, 4959 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:22,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2023-11-30 07:21:22,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:22,582 INFO L124 PetriNetUnfolderBase]: 306/1008 cut-off events. [2023-11-30 07:21:22,582 INFO L125 PetriNetUnfolderBase]: For 15498/17251 co-relation queries the response was YES. [2023-11-30 07:21:22,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7836 conditions, 1008 events. 306/1008 cut-off events. For 15498/17251 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6829 event pairs, 0 based on Foata normal form. 207/1160 useless extension candidates. Maximal degree in co-relation 7743. Up to 443 conditions per place. [2023-11-30 07:21:22,586 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 0 selfloop transitions, 0 changer transitions 274/274 dead transitions. [2023-11-30 07:21:22,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 274 transitions, 5827 flow [2023-11-30 07:21:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:21:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:21:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 922 transitions. [2023-11-30 07:21:22,589 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8152077807250221 [2023-11-30 07:21:22,589 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 922 transitions. [2023-11-30 07:21:22,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 922 transitions. [2023-11-30 07:21:22,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:22,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 922 transitions. [2023-11-30 07:21:22,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.92307692307692) internal successors, (922), 13 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,594 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,595 INFO L307 CegarLoopForPetriNet]: 86 programPoint places, 78 predicate places. [2023-11-30 07:21:22,595 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 274 transitions, 5827 flow [2023-11-30 07:21:22,595 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:22,598 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_17-ps_add1_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:21:22,640 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-11-30 07:21:22,640 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-11-30 07:21:22,641 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-11-30 07:21:22,642 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 07:21:22,642 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:22,646 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:21:22,646 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:21:22,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:21:22 BasicIcfg [2023-11-30 07:21:22,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:21:22,652 INFO L158 Benchmark]: Toolchain (without parser) took 4276.70ms. Allocated memory was 633.3MB in the beginning and 778.0MB in the end (delta: 144.7MB). Free memory was 582.5MB in the beginning and 586.9MB in the end (delta: -4.3MB). Peak memory consumption was 141.1MB. Max. memory is 16.0GB. [2023-11-30 07:21:22,652 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 394.3MB. Free memory is still 340.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:21:22,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.42ms. Allocated memory is still 633.3MB. Free memory was 582.2MB in the beginning and 554.3MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 07:21:22,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.66ms. Allocated memory is still 633.3MB. Free memory was 554.3MB in the beginning and 552.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:21:22,653 INFO L158 Benchmark]: Boogie Preprocessor took 28.19ms. Allocated memory is still 633.3MB. Free memory was 552.0MB in the beginning and 550.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:21:22,653 INFO L158 Benchmark]: RCFGBuilder took 307.63ms. Allocated memory is still 633.3MB. Free memory was 550.7MB in the beginning and 536.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 07:21:22,653 INFO L158 Benchmark]: TraceAbstraction took 3447.62ms. Allocated memory was 633.3MB in the beginning and 778.0MB in the end (delta: 144.7MB). Free memory was 535.4MB in the beginning and 586.9MB in the end (delta: -51.5MB). Peak memory consumption was 94.9MB. Max. memory is 16.0GB. [2023-11-30 07:21:22,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 394.3MB. Free memory is still 340.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 442.42ms. Allocated memory is still 633.3MB. Free memory was 582.2MB in the beginning and 554.3MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.66ms. Allocated memory is still 633.3MB. Free memory was 554.3MB in the beginning and 552.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.19ms. Allocated memory is still 633.3MB. Free memory was 552.0MB in the beginning and 550.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 307.63ms. Allocated memory is still 633.3MB. Free memory was 550.7MB in the beginning and 536.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3447.62ms. Allocated memory was 633.3MB in the beginning and 778.0MB in the end (delta: 144.7MB). Free memory was 535.4MB in the beginning and 586.9MB in the end (delta: -51.5MB). Peak memory consumption was 94.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 13 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: 3.3s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 453 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 453 mSDsluCounter, 457 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 263 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1048 IncrementalHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 194 mSDtfsCounter, 1048 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5827occurred in iteration=15, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 562 NumberOfCodeBlocks, 562 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 1269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:21:22,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...