/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/05-lval_ls_02-idx_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:22:21,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:22:21,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 07:22:21,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:22:21,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:22:21,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:22:21,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:22:21,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:22:21,891 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:22:21,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:22:21,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:22:21,894 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:22:21,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:22:21,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:22:21,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:22:21,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:22:21,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:22:21,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:22:21,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:22:21,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:22:21,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:22:21,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:22:21,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:22:21,897 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:22:21,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:22:21,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:22:21,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:22:21,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:22:21,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:22:21,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:22:21,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:22:21,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:22:21,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:22:21,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:22:22,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:22:22,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:22:22,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:22:22,123 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:22:22,124 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:22:22,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-11-30 07:22:23,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:22:23,189 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:22:23,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-11-30 07:22:23,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aec670446/e02907d0340841c2a67c15e40b0e6b17/FLAG878d346f7 [2023-11-30 07:22:23,210 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aec670446/e02907d0340841c2a67c15e40b0e6b17 [2023-11-30 07:22:23,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:22:23,212 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:22:23,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:22:23,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:22:23,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:22:23,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e396c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23, skipping insertion in model container [2023-11-30 07:22:23,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:22:23,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:22:23,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:22:23,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:22:23,535 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:22:23,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23 WrapperNode [2023-11-30 07:22:23,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:22:23,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:22:23,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:22:23,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:22:23,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,562 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-11-30 07:22:23,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:22:23,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:22:23,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:22:23,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:22:23,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:22:23,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:22:23,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:22:23,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:22:23,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (1/1) ... [2023-11-30 07:22:23,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:22:23,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:23,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 07:22:23,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 07:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:22:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:22:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:22:23,642 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 07:22:23,733 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:22:23,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:22:23,860 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:22:23,877 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:22:23,877 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-30 07:22:23,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:22:23 BoogieIcfgContainer [2023-11-30 07:22:23,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:22:23,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:22:23,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:22:23,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:22:23,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:22:23" (1/3) ... [2023-11-30 07:22:23,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472b4bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:22:23, skipping insertion in model container [2023-11-30 07:22:23,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:23" (2/3) ... [2023-11-30 07:22:23,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472b4bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:22:23, skipping insertion in model container [2023-11-30 07:22:23,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:22:23" (3/3) ... [2023-11-30 07:22:23,884 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2023-11-30 07:22:23,898 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:22:23,898 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 07:22:23,898 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:22:23,926 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 07:22:24,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 124 flow [2023-11-30 07:22:24,034 INFO L124 PetriNetUnfolderBase]: 2/59 cut-off events. [2023-11-30 07:22:24,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:22:24,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-11-30 07:22:24,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 60 transitions, 124 flow [2023-11-30 07:22:24,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 59 transitions, 121 flow [2023-11-30 07:22:24,047 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:22:24,056 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;@2037d208, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:22:24,056 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-30 07:22:24,065 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:22:24,065 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2023-11-30 07:22:24,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:22:24,067 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:24,068 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:24,069 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:24,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:24,073 INFO L85 PathProgramCache]: Analyzing trace with hash 858463918, now seen corresponding path program 1 times [2023-11-30 07:22:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:24,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060772697] [2023-11-30 07:22:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:24,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:24,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:24,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060772697] [2023-11-30 07:22:24,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060772697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:24,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:24,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:24,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290425764] [2023-11-30 07:22:24,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:24,326 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:24,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:24,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:24,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:24,350 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 60 [2023-11-30 07:22:24,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:24,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 60 [2023-11-30 07:22:24,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:24,456 INFO L124 PetriNetUnfolderBase]: 7/110 cut-off events. [2023-11-30 07:22:24,457 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:22:24,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 110 events. 7/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 225 event pairs, 6 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 95. Up to 32 conditions per place. [2023-11-30 07:22:24,460 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 22 selfloop transitions, 4 changer transitions 0/65 dead transitions. [2023-11-30 07:22:24,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 185 flow [2023-11-30 07:22:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 231 transitions. [2023-11-30 07:22:24,473 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.77 [2023-11-30 07:22:24,474 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 231 transitions. [2023-11-30 07:22:24,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 231 transitions. [2023-11-30 07:22:24,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:24,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 231 transitions. [2023-11-30 07:22:24,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,485 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,489 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2023-11-30 07:22:24,489 INFO L500 AbstractCegarLoop]: Abstraction has has 65 places, 65 transitions, 185 flow [2023-11-30 07:22:24,490 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,490 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:24,490 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:24,490 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:22:24,491 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:24,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:24,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1344399974, now seen corresponding path program 1 times [2023-11-30 07:22:24,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:24,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927407274] [2023-11-30 07:22:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:24,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:24,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:24,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927407274] [2023-11-30 07:22:24,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927407274] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:24,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372757132] [2023-11-30 07:22:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:24,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:24,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:24,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:24,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 07:22:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:24,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:22:24,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:24,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:22:24,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372757132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:24,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:22:24,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:22:24,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736091948] [2023-11-30 07:22:24,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:24,774 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:24,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:24,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:24,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:22:24,776 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 60 [2023-11-30 07:22:24,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 65 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 42.166666666666664) internal successors, (253), 6 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:24,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 60 [2023-11-30 07:22:24,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:24,858 INFO L124 PetriNetUnfolderBase]: 7/109 cut-off events. [2023-11-30 07:22:24,858 INFO L125 PetriNetUnfolderBase]: For 14/18 co-relation queries the response was YES. [2023-11-30 07:22:24,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 109 events. 7/109 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 6 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 112. Up to 31 conditions per place. [2023-11-30 07:22:24,859 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 18 selfloop transitions, 7 changer transitions 0/64 dead transitions. [2023-11-30 07:22:24,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 231 flow [2023-11-30 07:22:24,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:22:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:22:24,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2023-11-30 07:22:24,861 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2023-11-30 07:22:24,861 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2023-11-30 07:22:24,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2023-11-30 07:22:24,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:24,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2023-11-30 07:22:24,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,864 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,864 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 9 predicate places. [2023-11-30 07:22:24,864 INFO L500 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 231 flow [2023-11-30 07:22:24,865 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.166666666666664) internal successors, (253), 6 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:24,865 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:24,865 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:24,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 07:22:25,070 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:25,071 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:25,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:25,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1273273615, now seen corresponding path program 1 times [2023-11-30 07:22:25,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:25,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808204645] [2023-11-30 07:22:25,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:25,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:22:25,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:25,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808204645] [2023-11-30 07:22:25,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808204645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:25,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:25,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:25,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609891009] [2023-11-30 07:22:25,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:25,124 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:25,125 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 60 [2023-11-30 07:22:25,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:25,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 60 [2023-11-30 07:22:25,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:25,182 INFO L124 PetriNetUnfolderBase]: 7/108 cut-off events. [2023-11-30 07:22:25,183 INFO L125 PetriNetUnfolderBase]: For 39/47 co-relation queries the response was YES. [2023-11-30 07:22:25,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 108 events. 7/108 cut-off events. For 39/47 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 220 event pairs, 6 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 129. Up to 30 conditions per place. [2023-11-30 07:22:25,184 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 16 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2023-11-30 07:22:25,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 63 transitions, 273 flow [2023-11-30 07:22:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 219 transitions. [2023-11-30 07:22:25,189 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.73 [2023-11-30 07:22:25,189 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 219 transitions. [2023-11-30 07:22:25,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 219 transitions. [2023-11-30 07:22:25,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:25,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 219 transitions. [2023-11-30 07:22:25,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,191 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,191 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2023-11-30 07:22:25,191 INFO L500 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 273 flow [2023-11-30 07:22:25,192 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,192 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:25,192 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] [2023-11-30 07:22:25,192 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:22:25,192 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:25,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:25,192 INFO L85 PathProgramCache]: Analyzing trace with hash 430866998, now seen corresponding path program 1 times [2023-11-30 07:22:25,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:25,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772307063] [2023-11-30 07:22:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:25,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:25,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772307063] [2023-11-30 07:22:25,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772307063] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:25,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224736633] [2023-11-30 07:22:25,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:25,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:25,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:25,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:25,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 07:22:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:25,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 07:22:25,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:25,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:25,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224736633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:25,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:25,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-30 07:22:25,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436496598] [2023-11-30 07:22:25,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:25,378 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 07:22:25,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:25,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 07:22:25,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 07:22:25,380 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 60 [2023-11-30 07:22:25,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 273 flow. Second operand has 10 states, 10 states have (on average 42.9) internal successors, (429), 10 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:25,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 60 [2023-11-30 07:22:25,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:25,494 INFO L124 PetriNetUnfolderBase]: 7/116 cut-off events. [2023-11-30 07:22:25,494 INFO L125 PetriNetUnfolderBase]: For 76/88 co-relation queries the response was YES. [2023-11-30 07:22:25,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 116 events. 7/116 cut-off events. For 76/88 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 208 event pairs, 6 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 146. Up to 38 conditions per place. [2023-11-30 07:22:25,496 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 23 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2023-11-30 07:22:25,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 71 transitions, 401 flow [2023-11-30 07:22:25,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:22:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:22:25,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 394 transitions. [2023-11-30 07:22:25,497 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7296296296296296 [2023-11-30 07:22:25,498 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 394 transitions. [2023-11-30 07:22:25,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 394 transitions. [2023-11-30 07:22:25,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:25,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 394 transitions. [2023-11-30 07:22:25,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.77777777777778) internal successors, (394), 9 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,500 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,501 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 20 predicate places. [2023-11-30 07:22:25,502 INFO L500 AbstractCegarLoop]: Abstraction has has 81 places, 71 transitions, 401 flow [2023-11-30 07:22:25,502 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 42.9) internal successors, (429), 10 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,502 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:25,502 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:25,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:25,707 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-30 07:22:25,709 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:25,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2040364746, now seen corresponding path program 2 times [2023-11-30 07:22:25,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:25,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789935658] [2023-11-30 07:22:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:25,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-30 07:22:25,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:25,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789935658] [2023-11-30 07:22:25,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789935658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:25,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:25,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:25,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174503817] [2023-11-30 07:22:25,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:25,796 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:25,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:25,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:25,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:25,797 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 60 [2023-11-30 07:22:25,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 71 transitions, 401 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:25,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 60 [2023-11-30 07:22:25,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:25,843 INFO L124 PetriNetUnfolderBase]: 37/210 cut-off events. [2023-11-30 07:22:25,843 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2023-11-30 07:22:25,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 210 events. 37/210 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 784 event pairs, 10 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 427. Up to 63 conditions per place. [2023-11-30 07:22:25,844 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 19 selfloop transitions, 5 changer transitions 10/90 dead transitions. [2023-11-30 07:22:25,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 90 transitions, 547 flow [2023-11-30 07:22:25,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 258 transitions. [2023-11-30 07:22:25,845 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.86 [2023-11-30 07:22:25,845 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 258 transitions. [2023-11-30 07:22:25,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 258 transitions. [2023-11-30 07:22:25,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:25,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 258 transitions. [2023-11-30 07:22:25,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.6) internal successors, (258), 5 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,847 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,847 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 24 predicate places. [2023-11-30 07:22:25,847 INFO L500 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 547 flow [2023-11-30 07:22:25,848 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,848 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:25,848 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:25,848 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:22:25,848 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:25,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:25,848 INFO L85 PathProgramCache]: Analyzing trace with hash 589354726, now seen corresponding path program 1 times [2023-11-30 07:22:25,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:25,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643953318] [2023-11-30 07:22:25,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:25,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-30 07:22:25,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:25,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643953318] [2023-11-30 07:22:25,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643953318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:25,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:25,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:25,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013341995] [2023-11-30 07:22:25,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:25,890 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:25,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:25,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:25,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:25,891 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 60 [2023-11-30 07:22:25,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 90 transitions, 547 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:25,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 60 [2023-11-30 07:22:25,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:25,946 INFO L124 PetriNetUnfolderBase]: 64/286 cut-off events. [2023-11-30 07:22:25,946 INFO L125 PetriNetUnfolderBase]: For 680/688 co-relation queries the response was YES. [2023-11-30 07:22:25,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 286 events. 64/286 cut-off events. For 680/688 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1267 event pairs, 16 based on Foata normal form. 4/280 useless extension candidates. Maximal degree in co-relation 733. Up to 81 conditions per place. [2023-11-30 07:22:25,948 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 23 selfloop transitions, 5 changer transitions 22/105 dead transitions. [2023-11-30 07:22:25,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 105 transitions, 713 flow [2023-11-30 07:22:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-11-30 07:22:25,949 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-30 07:22:25,949 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 250 transitions. [2023-11-30 07:22:25,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 250 transitions. [2023-11-30 07:22:25,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:25,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 250 transitions. [2023-11-30 07:22:25,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,950 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,951 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2023-11-30 07:22:25,951 INFO L500 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 713 flow [2023-11-30 07:22:25,951 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:25,951 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:25,951 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:25,951 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:22:25,952 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:25,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1978484223, now seen corresponding path program 1 times [2023-11-30 07:22:25,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:25,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942659244] [2023-11-30 07:22:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:25,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-30 07:22:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942659244] [2023-11-30 07:22:26,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942659244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:26,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:26,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127980979] [2023-11-30 07:22:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:26,021 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:22:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:26,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:22:26,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:22:26,021 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 60 [2023-11-30 07:22:26,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 105 transitions, 713 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:26,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 60 [2023-11-30 07:22:26,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:26,041 INFO L124 PetriNetUnfolderBase]: 6/107 cut-off events. [2023-11-30 07:22:26,041 INFO L125 PetriNetUnfolderBase]: For 400/412 co-relation queries the response was YES. [2023-11-30 07:22:26,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 107 events. 6/107 cut-off events. For 400/412 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 167 event pairs, 3 based on Foata normal form. 12/110 useless extension candidates. Maximal degree in co-relation 205. Up to 36 conditions per place. [2023-11-30 07:22:26,042 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 6 selfloop transitions, 6 changer transitions 5/83 dead transitions. [2023-11-30 07:22:26,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 565 flow [2023-11-30 07:22:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:22:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:22:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2023-11-30 07:22:26,045 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9055555555555556 [2023-11-30 07:22:26,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 163 transitions. [2023-11-30 07:22:26,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 163 transitions. [2023-11-30 07:22:26,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:26,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 163 transitions. [2023-11-30 07:22:26,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 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 07:22:26,046 INFO L81 ComplementDD]: Finished complementDD. Result 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 07:22:26,047 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 30 predicate places. [2023-11-30 07:22:26,047 INFO L500 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 565 flow [2023-11-30 07:22:26,048 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,048 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:26,048 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:26,048 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:22:26,048 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:26,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1184603102, now seen corresponding path program 1 times [2023-11-30 07:22:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840896468] [2023-11-30 07:22:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:26,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:26,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:26,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840896468] [2023-11-30 07:22:26,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840896468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:26,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093992774] [2023-11-30 07:22:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:26,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:26,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:26,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:26,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 07:22:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:26,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 07:22:26,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:26,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:26,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093992774] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:26,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:26,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-30 07:22:26,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172342475] [2023-11-30 07:22:26,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:26,374 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 07:22:26,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:26,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 07:22:26,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-30 07:22:26,375 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 60 [2023-11-30 07:22:26,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 565 flow. Second operand has 18 states, 18 states have (on average 43.27777777777778) internal successors, (779), 18 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:26,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 60 [2023-11-30 07:22:26,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:26,558 INFO L124 PetriNetUnfolderBase]: 6/135 cut-off events. [2023-11-30 07:22:26,558 INFO L125 PetriNetUnfolderBase]: For 296/311 co-relation queries the response was YES. [2023-11-30 07:22:26,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 135 events. 6/135 cut-off events. For 296/311 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 168 event pairs, 3 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 347. Up to 64 conditions per place. [2023-11-30 07:22:26,559 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 41 selfloop transitions, 21 changer transitions 5/111 dead transitions. [2023-11-30 07:22:26,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 111 transitions, 977 flow [2023-11-30 07:22:26,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 07:22:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 07:22:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 904 transitions. [2023-11-30 07:22:26,562 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7174603174603175 [2023-11-30 07:22:26,562 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 904 transitions. [2023-11-30 07:22:26,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 904 transitions. [2023-11-30 07:22:26,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:26,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 904 transitions. [2023-11-30 07:22:26,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 43.04761904761905) internal successors, (904), 21 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 60.0) internal successors, (1320), 22 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,567 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 60.0) internal successors, (1320), 22 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,569 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 50 predicate places. [2023-11-30 07:22:26,569 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 111 transitions, 977 flow [2023-11-30 07:22:26,570 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 43.27777777777778) internal successors, (779), 18 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:26,570 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:26,570 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:26,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-30 07:22:26,774 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:26,775 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:26,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1585979938, now seen corresponding path program 2 times [2023-11-30 07:22:26,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:26,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565661556] [2023-11-30 07:22:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:26,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:26,983 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:26,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:26,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565661556] [2023-11-30 07:22:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565661556] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479264736] [2023-11-30 07:22:26,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:22:26,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:26,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:27,002 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:27,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 07:22:27,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 07:22:27,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:22:27,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:22:27,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-30 07:22:27,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:22:27,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479264736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:27,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:22:27,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-30 07:22:27,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446458376] [2023-11-30 07:22:27,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:27,166 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:27,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:27,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:27,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-11-30 07:22:27,167 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 60 [2023-11-30 07:22:27,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 977 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:27,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:27,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 60 [2023-11-30 07:22:27,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:27,245 INFO L124 PetriNetUnfolderBase]: 10/146 cut-off events. [2023-11-30 07:22:27,245 INFO L125 PetriNetUnfolderBase]: For 468/503 co-relation queries the response was YES. [2023-11-30 07:22:27,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 146 events. 10/146 cut-off events. For 468/503 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 271 event pairs, 8 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 349. Up to 70 conditions per place. [2023-11-30 07:22:27,246 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 21 selfloop transitions, 7 changer transitions 9/114 dead transitions. [2023-11-30 07:22:27,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 114 transitions, 1111 flow [2023-11-30 07:22:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 07:22:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 07:22:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 334 transitions. [2023-11-30 07:22:27,247 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2023-11-30 07:22:27,247 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 334 transitions. [2023-11-30 07:22:27,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 334 transitions. [2023-11-30 07:22:27,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:27,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 334 transitions. [2023-11-30 07:22:27,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 41.75) internal successors, (334), 8 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:27,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:27,249 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:27,249 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 56 predicate places. [2023-11-30 07:22:27,249 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 1111 flow [2023-11-30 07:22:27,250 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:27,250 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:27,250 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:27,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:27,454 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:27,454 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:27,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash -929416804, now seen corresponding path program 1 times [2023-11-30 07:22:27,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:27,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718799294] [2023-11-30 07:22:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:27,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:27,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718799294] [2023-11-30 07:22:27,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718799294] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:27,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477944165] [2023-11-30 07:22:27,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:27,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:27,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:27,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 07:22:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:27,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 07:22:27,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:27,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:27,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477944165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:27,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:27,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-30 07:22:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865531432] [2023-11-30 07:22:27,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:27,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 07:22:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 07:22:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-30 07:22:27,952 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 60 [2023-11-30 07:22:27,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 1111 flow. Second operand has 23 states, 23 states have (on average 43.47826086956522) internal successors, (1000), 23 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:27,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:27,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 60 [2023-11-30 07:22:27,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:28,224 INFO L124 PetriNetUnfolderBase]: 10/167 cut-off events. [2023-11-30 07:22:28,224 INFO L125 PetriNetUnfolderBase]: For 611/651 co-relation queries the response was YES. [2023-11-30 07:22:28,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 167 events. 10/167 cut-off events. For 611/651 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 270 event pairs, 8 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 553. Up to 91 conditions per place. [2023-11-30 07:22:28,225 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 54 selfloop transitions, 30 changer transitions 9/135 dead transitions. [2023-11-30 07:22:28,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 135 transitions, 1543 flow [2023-11-30 07:22:28,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 07:22:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 07:22:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1284 transitions. [2023-11-30 07:22:28,228 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7133333333333334 [2023-11-30 07:22:28,228 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1284 transitions. [2023-11-30 07:22:28,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1284 transitions. [2023-11-30 07:22:28,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:28,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1284 transitions. [2023-11-30 07:22:28,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 42.8) internal successors, (1284), 30 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 60.0) internal successors, (1860), 31 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,232 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 60.0) internal successors, (1860), 31 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,233 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 85 predicate places. [2023-11-30 07:22:28,233 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 135 transitions, 1543 flow [2023-11-30 07:22:28,233 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 43.47826086956522) internal successors, (1000), 23 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,233 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:28,233 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:28,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 07:22:28,438 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-30 07:22:28,439 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:28,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:28,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1695650788, now seen corresponding path program 2 times [2023-11-30 07:22:28,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:28,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396540744] [2023-11-30 07:22:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:28,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:28,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:28,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396540744] [2023-11-30 07:22:28,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396540744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:28,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:28,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:28,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703825036] [2023-11-30 07:22:28,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:28,521 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:28,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:28,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:28,522 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 60 [2023-11-30 07:22:28,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 1543 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:28,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 60 [2023-11-30 07:22:28,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:28,592 INFO L124 PetriNetUnfolderBase]: 9/164 cut-off events. [2023-11-30 07:22:28,592 INFO L125 PetriNetUnfolderBase]: For 676/720 co-relation queries the response was YES. [2023-11-30 07:22:28,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 164 events. 9/164 cut-off events. For 676/720 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 246 event pairs, 3 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 555. Up to 90 conditions per place. [2023-11-30 07:22:28,593 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 22 selfloop transitions, 6 changer transitions 9/135 dead transitions. [2023-11-30 07:22:28,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 135 transitions, 1629 flow [2023-11-30 07:22:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:22:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:22:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 296 transitions. [2023-11-30 07:22:28,595 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2023-11-30 07:22:28,595 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 296 transitions. [2023-11-30 07:22:28,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 296 transitions. [2023-11-30 07:22:28,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:28,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 296 transitions. [2023-11-30 07:22:28,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,596 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,597 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 90 predicate places. [2023-11-30 07:22:28,597 INFO L500 AbstractCegarLoop]: Abstraction has has 151 places, 135 transitions, 1629 flow [2023-11-30 07:22:28,597 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,597 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:28,597 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:28,597 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:22:28,597 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:28,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:28,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1693454710, now seen corresponding path program 1 times [2023-11-30 07:22:28,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:28,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949869788] [2023-11-30 07:22:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:28,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:28,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:28,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949869788] [2023-11-30 07:22:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949869788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:28,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:28,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:28,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012327749] [2023-11-30 07:22:28,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:28,676 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:28,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:28,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:28,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:28,676 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 60 [2023-11-30 07:22:28,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 135 transitions, 1629 flow. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:28,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 60 [2023-11-30 07:22:28,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:28,735 INFO L124 PetriNetUnfolderBase]: 9/163 cut-off events. [2023-11-30 07:22:28,735 INFO L125 PetriNetUnfolderBase]: For 788/844 co-relation queries the response was YES. [2023-11-30 07:22:28,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 163 events. 9/163 cut-off events. For 788/844 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 240 event pairs, 3 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 557. Up to 90 conditions per place. [2023-11-30 07:22:28,736 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 13 selfloop transitions, 4 changer transitions 22/134 dead transitions. [2023-11-30 07:22:28,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 134 transitions, 1693 flow [2023-11-30 07:22:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:22:28,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:22:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 365 transitions. [2023-11-30 07:22:28,737 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6759259259259259 [2023-11-30 07:22:28,737 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 365 transitions. [2023-11-30 07:22:28,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 365 transitions. [2023-11-30 07:22:28,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:28,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 365 transitions. [2023-11-30 07:22:28,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.55555555555556) internal successors, (365), 9 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,738 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,739 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 97 predicate places. [2023-11-30 07:22:28,739 INFO L500 AbstractCegarLoop]: Abstraction has has 158 places, 134 transitions, 1693 flow [2023-11-30 07:22:28,739 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,739 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:28,739 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:28,739 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 07:22:28,739 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-30 07:22:28,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1025567058, now seen corresponding path program 1 times [2023-11-30 07:22:28,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:28,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100175568] [2023-11-30 07:22:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-30 07:22:28,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:28,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100175568] [2023-11-30 07:22:28,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100175568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:28,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:28,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:28,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607446041] [2023-11-30 07:22:28,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:28,817 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:28,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:28,818 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 60 [2023-11-30 07:22:28,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 134 transitions, 1693 flow. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:28,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 60 [2023-11-30 07:22:28,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:28,877 INFO L124 PetriNetUnfolderBase]: 8/160 cut-off events. [2023-11-30 07:22:28,878 INFO L125 PetriNetUnfolderBase]: For 891/971 co-relation queries the response was YES. [2023-11-30 07:22:28,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 160 events. 8/160 cut-off events. For 891/971 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 198 event pairs, 1 based on Foata normal form. 2/159 useless extension candidates. Maximal degree in co-relation 559. Up to 89 conditions per place. [2023-11-30 07:22:28,878 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 0 selfloop transitions, 0 changer transitions 134/134 dead transitions. [2023-11-30 07:22:28,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 134 transitions, 1777 flow [2023-11-30 07:22:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:22:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:22:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 367 transitions. [2023-11-30 07:22:28,880 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6796296296296296 [2023-11-30 07:22:28,880 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 367 transitions. [2023-11-30 07:22:28,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 367 transitions. [2023-11-30 07:22:28,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:28,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 367 transitions. [2023-11-30 07:22:28,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.77777777777778) internal successors, (367), 9 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 07:22:28,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,882 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,882 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 103 predicate places. [2023-11-30 07:22:28,882 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 134 transitions, 1777 flow [2023-11-30 07:22:28,882 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:28,885 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/05-lval_ls_02-idx_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:22:28,906 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-30 07:22:28,907 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-30 07:22:28,907 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 07:22:28,908 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:28,911 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:22:28,911 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:22:28,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:22:28 BasicIcfg [2023-11-30 07:22:28,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:22:28,915 INFO L158 Benchmark]: Toolchain (without parser) took 5703.04ms. Allocated memory was 373.3MB in the beginning and 599.8MB in the end (delta: 226.5MB). Free memory was 319.6MB in the beginning and 310.1MB in the end (delta: 9.5MB). Peak memory consumption was 238.0MB. Max. memory is 16.0GB. [2023-11-30 07:22:28,915 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 324.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:22:28,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.27ms. Allocated memory is still 373.3MB. Free memory was 319.6MB in the beginning and 300.3MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-30 07:22:28,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.05ms. Allocated memory is still 373.3MB. Free memory was 300.3MB in the beginning and 298.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:22:28,916 INFO L158 Benchmark]: Boogie Preprocessor took 22.25ms. Allocated memory is still 373.3MB. Free memory was 298.2MB in the beginning and 297.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:22:28,916 INFO L158 Benchmark]: RCFGBuilder took 292.81ms. Allocated memory is still 373.3MB. Free memory was 297.0MB in the beginning and 283.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 07:22:28,916 INFO L158 Benchmark]: TraceAbstraction took 5034.98ms. Allocated memory was 373.3MB in the beginning and 599.8MB in the end (delta: 226.5MB). Free memory was 282.7MB in the beginning and 310.1MB in the end (delta: -27.4MB). Peak memory consumption was 200.3MB. Max. memory is 16.0GB. [2023-11-30 07:22:28,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 324.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 323.27ms. Allocated memory is still 373.3MB. Free memory was 319.6MB in the beginning and 300.3MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.05ms. Allocated memory is still 373.3MB. Free memory was 300.3MB in the beginning and 298.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.25ms. Allocated memory is still 373.3MB. Free memory was 298.2MB in the beginning and 297.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 292.81ms. Allocated memory is still 373.3MB. Free memory was 297.0MB in the beginning and 283.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5034.98ms. Allocated memory was 373.3MB in the beginning and 599.8MB in the end (delta: 226.5MB). Free memory was 282.7MB in the beginning and 310.1MB in the end (delta: -27.4MB). Peak memory consumption was 200.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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, 75 locations, 9 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: 4.9s, OverallIterations: 13, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 330 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 835 IncrementalHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 91 mSDtfsCounter, 835 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 550 GetRequests, 393 SyntacticMatches, 11 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1777occurred in iteration=13, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 994 NumberOfCodeBlocks, 945 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1133 ConstructedInterpolants, 0 QuantifiedInterpolants, 2693 SizeOfPredicates, 28 NumberOfNonLiveVariables, 513 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 21 InterpolantComputations, 10 PerfectInterpolantSequences, 1210/1905 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:22:28,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...