/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.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.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/pthread/stack-2.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 01:24:49,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 01:24:49,339 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 [2025-03-15 01:24:49,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 01:24:49,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 01:24:49,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 01:24:49,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 01:24:49,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 01:24:49,368 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 01:24:49,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:24:49,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 01:24:49,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All 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 -> ASSERTandASSUME [2025-03-15 01:24:49,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 01:24:49,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 01:24:49,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 01:24:49,621 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 01:24:49,621 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 01:24:49,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2025-03-15 01:24:50,153 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39cc0980/1a9b9bbfe45b412ab8317f435d20db62/FLAGc4a19e462 [2025-03-15 01:24:51,756 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 01:24:51,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i [2025-03-15 01:24:51,773 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39cc0980/1a9b9bbfe45b412ab8317f435d20db62/FLAGc4a19e462 [2025-03-15 01:24:51,787 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39cc0980/1a9b9bbfe45b412ab8317f435d20db62 [2025-03-15 01:24:51,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 01:24:51,789 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 01:24:51,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 01:24:51,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 01:24:51,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 01:24:51,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:24:51" (1/1) ... [2025-03-15 01:24:51,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1e1a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:51, skipping insertion in model container [2025-03-15 01:24:51,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:24:51" (1/1) ... [2025-03-15 01:24:51,831 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 01:24:52,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:24:52,124 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 01:24:52,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:24:52,247 INFO L204 MainTranslator]: Completed translation [2025-03-15 01:24:52,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52 WrapperNode [2025-03-15 01:24:52,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 01:24:52,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 01:24:52,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 01:24:52,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 01:24:52,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,308 INFO L138 Inliner]: procedures = 277, calls = 37, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 163 [2025-03-15 01:24:52,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 01:24:52,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 01:24:52,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 01:24:52,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 01:24:52,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,324 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 01:24:52,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 01:24:52,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 01:24:52,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 01:24:52,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (1/1) ... [2025-03-15 01:24:52,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:24:52,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:24:52,368 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) [2025-03-15 01:24:52,370 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 [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-15 01:24:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-15 01:24:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 01:24:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 01:24:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 01:24:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 01:24:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 01:24:52,390 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 01:24:52,509 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 01:24:52,510 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 01:24:52,750 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 01:24:52,750 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 01:24:52,770 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 01:24:52,770 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 01:24:52,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:24:52 BoogieIcfgContainer [2025-03-15 01:24:52,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 01:24:52,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 01:24:52,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 01:24:52,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 01:24:52,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:24:51" (1/3) ... [2025-03-15 01:24:52,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcf0a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:24:52, skipping insertion in model container [2025-03-15 01:24:52,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:24:52" (2/3) ... [2025-03-15 01:24:52,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcf0a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:24:52, skipping insertion in model container [2025-03-15 01:24:52,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:24:52" (3/3) ... [2025-03-15 01:24:52,782 INFO L128 eAbstractionObserver]: Analyzing ICFG stack-2.i [2025-03-15 01:24:52,793 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 01:24:52,795 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG stack-2.i that has 3 procedures, 177 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-03-15 01:24:52,795 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 01:24:52,875 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 01:24:52,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:24:52,922 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@2ca2ff19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:24:52,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-15 01:24:52,959 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:24:52,959 INFO L124 PetriNetUnfolderBase]: 1/79 cut-off events. [2025-03-15 01:24:52,963 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-15 01:24:52,963 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:52,963 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:52,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:52,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:52,969 INFO L85 PathProgramCache]: Analyzing trace with hash -410292480, now seen corresponding path program 1 times [2025-03-15 01:24:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:52,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309378448] [2025-03-15 01:24:52,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:52,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:53,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:53,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309378448] [2025-03-15 01:24:53,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309378448] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:53,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:53,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:24:53,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601611671] [2025-03-15 01:24:53,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:53,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:24:53,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:53,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:24:53,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:24:53,359 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:24:53,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 186 transitions, 386 flow. Second operand has 4 states, 4 states have (on average 162.25) internal successors, (649), 4 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:53,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:53,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:24:53,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:53,598 INFO L124 PetriNetUnfolderBase]: 108/678 cut-off events. [2025-03-15 01:24:53,598 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2025-03-15 01:24:53,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 678 events. 108/678 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4152 event pairs, 27 based on Foata normal form. 55/649 useless extension candidates. Maximal degree in co-relation 622. Up to 121 conditions per place. [2025-03-15 01:24:53,610 INFO L140 encePairwiseOnDemand]: 174/186 looper letters, 31 selfloop transitions, 4 changer transitions 5/190 dead transitions. [2025-03-15 01:24:53,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 190 transitions, 473 flow [2025-03-15 01:24:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:24:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:24:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 855 transitions. [2025-03-15 01:24:53,623 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9193548387096774 [2025-03-15 01:24:53,630 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, -4 predicate places. [2025-03-15 01:24:53,630 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 190 transitions, 473 flow [2025-03-15 01:24:53,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.25) internal successors, (649), 4 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:53,631 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:53,631 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:53,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 01:24:53,631 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:53,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1059245128, now seen corresponding path program 1 times [2025-03-15 01:24:53,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:53,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643544451] [2025-03-15 01:24:53,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:53,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:53,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:53,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:53,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643544451] [2025-03-15 01:24:53,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643544451] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:53,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:53,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:24:53,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962835890] [2025-03-15 01:24:53,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:53,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 01:24:53,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:53,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 01:24:53,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 01:24:53,777 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 186 [2025-03-15 01:24:53,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 190 transitions, 473 flow. Second operand has 5 states, 5 states have (on average 152.4) internal successors, (762), 5 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:53,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:53,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 186 [2025-03-15 01:24:53,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:54,456 INFO L124 PetriNetUnfolderBase]: 787/3859 cut-off events. [2025-03-15 01:24:54,457 INFO L125 PetriNetUnfolderBase]: For 1125/1159 co-relation queries the response was YES. [2025-03-15 01:24:54,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6093 conditions, 3859 events. 787/3859 cut-off events. For 1125/1159 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 35767 event pairs, 269 based on Foata normal form. 8/3330 useless extension candidates. Maximal degree in co-relation 5090. Up to 627 conditions per place. [2025-03-15 01:24:54,484 INFO L140 encePairwiseOnDemand]: 177/186 looper letters, 125 selfloop transitions, 13 changer transitions 8/292 dead transitions. [2025-03-15 01:24:54,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 292 transitions, 1143 flow [2025-03-15 01:24:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 01:24:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 01:24:54,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1303 transitions. [2025-03-15 01:24:54,488 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8756720430107527 [2025-03-15 01:24:54,489 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 3 predicate places. [2025-03-15 01:24:54,489 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 292 transitions, 1143 flow [2025-03-15 01:24:54,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.4) internal successors, (762), 5 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:54,489 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:54,490 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:54,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 01:24:54,490 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:54,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:54,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1922083046, now seen corresponding path program 1 times [2025-03-15 01:24:54,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:54,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356662936] [2025-03-15 01:24:54,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:54,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:54,638 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:54,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:54,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356662936] [2025-03-15 01:24:54,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356662936] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:24:54,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053346822] [2025-03-15 01:24:54,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:54,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:24:54,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:24:54,641 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) [2025-03-15 01:24:54,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-15 01:24:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:54,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 01:24:54,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:24:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:54,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 01:24:54,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053346822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:54,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 01:24:54,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-15 01:24:54,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794151901] [2025-03-15 01:24:54,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:54,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 01:24:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:54,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 01:24:54,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-15 01:24:54,790 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:24:54,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 292 transitions, 1143 flow. Second operand has 5 states, 5 states have (on average 163.4) internal successors, (817), 5 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:54,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:54,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:24:54,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:55,254 INFO L124 PetriNetUnfolderBase]: 772/3767 cut-off events. [2025-03-15 01:24:55,255 INFO L125 PetriNetUnfolderBase]: For 2214/2990 co-relation queries the response was YES. [2025-03-15 01:24:55,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6680 conditions, 3767 events. 772/3767 cut-off events. For 2214/2990 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 34830 event pairs, 201 based on Foata normal form. 58/3330 useless extension candidates. Maximal degree in co-relation 5491. Up to 615 conditions per place. [2025-03-15 01:24:55,274 INFO L140 encePairwiseOnDemand]: 182/186 looper letters, 99 selfloop transitions, 5 changer transitions 8/306 dead transitions. [2025-03-15 01:24:55,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 306 transitions, 1463 flow [2025-03-15 01:24:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 01:24:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 01:24:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 665 transitions. [2025-03-15 01:24:55,276 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8938172043010753 [2025-03-15 01:24:55,277 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 5 predicate places. [2025-03-15 01:24:55,277 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 306 transitions, 1463 flow [2025-03-15 01:24:55,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 163.4) internal successors, (817), 5 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:55,277 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:55,277 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:55,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-15 01:24:55,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:24:55,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:55,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:55,479 INFO L85 PathProgramCache]: Analyzing trace with hash 544968277, now seen corresponding path program 1 times [2025-03-15 01:24:55,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:55,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237042995] [2025-03-15 01:24:55,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:55,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 01:24:55,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:55,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237042995] [2025-03-15 01:24:55,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237042995] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:55,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:55,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:24:55,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240016090] [2025-03-15 01:24:55,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:55,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:24:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:55,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:24:55,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:24:55,555 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:24:55,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 306 transitions, 1463 flow. Second operand has 4 states, 4 states have (on average 164.5) internal successors, (658), 4 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:55,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:55,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:24:55,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:55,923 INFO L124 PetriNetUnfolderBase]: 762/3739 cut-off events. [2025-03-15 01:24:55,924 INFO L125 PetriNetUnfolderBase]: For 3580/5314 co-relation queries the response was YES. [2025-03-15 01:24:55,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7288 conditions, 3739 events. 762/3739 cut-off events. For 3580/5314 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 34420 event pairs, 202 based on Foata normal form. 174/3452 useless extension candidates. Maximal degree in co-relation 5929. Up to 612 conditions per place. [2025-03-15 01:24:55,947 INFO L140 encePairwiseOnDemand]: 180/186 looper letters, 99 selfloop transitions, 8 changer transitions 24/325 dead transitions. [2025-03-15 01:24:55,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 325 transitions, 1895 flow [2025-03-15 01:24:55,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:24:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:24:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 828 transitions. [2025-03-15 01:24:55,949 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8903225806451613 [2025-03-15 01:24:55,950 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 8 predicate places. [2025-03-15 01:24:55,950 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 325 transitions, 1895 flow [2025-03-15 01:24:55,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.5) internal successors, (658), 4 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:55,950 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:55,950 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:55,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 01:24:55,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:55,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1880638340, now seen corresponding path program 1 times [2025-03-15 01:24:55,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989233985] [2025-03-15 01:24:55,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:55,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:56,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:56,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:56,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989233985] [2025-03-15 01:24:56,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989233985] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:56,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:56,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:24:56,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829535008] [2025-03-15 01:24:56,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:56,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:24:56,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:56,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:24:56,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:24:56,044 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 186 [2025-03-15 01:24:56,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 325 transitions, 1895 flow. Second operand has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:56,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:56,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 186 [2025-03-15 01:24:56,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:56,534 INFO L124 PetriNetUnfolderBase]: 965/4357 cut-off events. [2025-03-15 01:24:56,535 INFO L125 PetriNetUnfolderBase]: For 7080/8347 co-relation queries the response was YES. [2025-03-15 01:24:56,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9903 conditions, 4357 events. 965/4357 cut-off events. For 7080/8347 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 40300 event pairs, 256 based on Foata normal form. 51/3836 useless extension candidates. Maximal degree in co-relation 8385. Up to 1042 conditions per place. [2025-03-15 01:24:56,563 INFO L140 encePairwiseOnDemand]: 180/186 looper letters, 154 selfloop transitions, 8 changer transitions 24/350 dead transitions. [2025-03-15 01:24:56,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 350 transitions, 2453 flow [2025-03-15 01:24:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:24:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:24:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 823 transitions. [2025-03-15 01:24:56,566 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8849462365591397 [2025-03-15 01:24:56,567 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 12 predicate places. [2025-03-15 01:24:56,567 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 350 transitions, 2453 flow [2025-03-15 01:24:56,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:56,567 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:56,567 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:56,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 01:24:56,568 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:56,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash -528834757, now seen corresponding path program 1 times [2025-03-15 01:24:56,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:56,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378281577] [2025-03-15 01:24:56,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:56,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:56,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:56,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378281577] [2025-03-15 01:24:56,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378281577] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:56,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:56,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:24:56,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326963396] [2025-03-15 01:24:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:56,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:24:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:56,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:24:56,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:24:56,669 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:24:56,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 350 transitions, 2453 flow. Second operand has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:56,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:56,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:24:56,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:57,301 INFO L124 PetriNetUnfolderBase]: 1189/5366 cut-off events. [2025-03-15 01:24:57,301 INFO L125 PetriNetUnfolderBase]: For 16230/18274 co-relation queries the response was YES. [2025-03-15 01:24:57,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13334 conditions, 5366 events. 1189/5366 cut-off events. For 16230/18274 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 50885 event pairs, 306 based on Foata normal form. 121/4772 useless extension candidates. Maximal degree in co-relation 12352. Up to 1349 conditions per place. [2025-03-15 01:24:57,344 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 171 selfloop transitions, 4 changer transitions 6/388 dead transitions. [2025-03-15 01:24:57,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 388 transitions, 3158 flow [2025-03-15 01:24:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:24:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:24:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 839 transitions. [2025-03-15 01:24:57,347 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9021505376344086 [2025-03-15 01:24:57,347 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 16 predicate places. [2025-03-15 01:24:57,347 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 388 transitions, 3158 flow [2025-03-15 01:24:57,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:57,348 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:57,348 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:57,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 01:24:57,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:57,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:57,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1478982494, now seen corresponding path program 1 times [2025-03-15 01:24:57,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:57,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936515610] [2025-03-15 01:24:57,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:57,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:57,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:57,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936515610] [2025-03-15 01:24:57,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936515610] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:57,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:57,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:24:57,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919417772] [2025-03-15 01:24:57,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:57,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:24:57,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:57,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:24:57,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:24:57,492 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 186 [2025-03-15 01:24:57,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 388 transitions, 3158 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:57,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:57,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 186 [2025-03-15 01:24:57,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:57,745 INFO L124 PetriNetUnfolderBase]: 396/2316 cut-off events. [2025-03-15 01:24:57,745 INFO L125 PetriNetUnfolderBase]: For 18720/20537 co-relation queries the response was YES. [2025-03-15 01:24:57,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6459 conditions, 2316 events. 396/2316 cut-off events. For 18720/20537 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 16215 event pairs, 76 based on Foata normal form. 197/2232 useless extension candidates. Maximal degree in co-relation 5758. Up to 494 conditions per place. [2025-03-15 01:24:57,759 INFO L140 encePairwiseOnDemand]: 182/186 looper letters, 39 selfloop transitions, 98 changer transitions 6/336 dead transitions. [2025-03-15 01:24:57,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 336 transitions, 2922 flow [2025-03-15 01:24:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:24:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:24:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2025-03-15 01:24:57,761 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9157706093189965 [2025-03-15 01:24:57,761 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 17 predicate places. [2025-03-15 01:24:57,761 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 336 transitions, 2922 flow [2025-03-15 01:24:57,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:57,762 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:57,762 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:57,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 01:24:57,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:57,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1027909305, now seen corresponding path program 1 times [2025-03-15 01:24:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465072055] [2025-03-15 01:24:57,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465072055] [2025-03-15 01:24:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465072055] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:57,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:57,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:24:57,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884989637] [2025-03-15 01:24:57,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:57,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:24:57,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:57,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:24:57,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 01:24:57,874 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 186 [2025-03-15 01:24:57,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 336 transitions, 2922 flow. Second operand has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:57,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:57,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 186 [2025-03-15 01:24:57,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:58,430 INFO L124 PetriNetUnfolderBase]: 701/4114 cut-off events. [2025-03-15 01:24:58,430 INFO L125 PetriNetUnfolderBase]: For 32391/33990 co-relation queries the response was YES. [2025-03-15 01:24:58,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12652 conditions, 4114 events. 701/4114 cut-off events. For 32391/33990 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 33746 event pairs, 146 based on Foata normal form. 44/3642 useless extension candidates. Maximal degree in co-relation 11168. Up to 950 conditions per place. [2025-03-15 01:24:58,453 INFO L140 encePairwiseOnDemand]: 176/186 looper letters, 253 selfloop transitions, 14 changer transitions 8/433 dead transitions. [2025-03-15 01:24:58,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 433 transitions, 4828 flow [2025-03-15 01:24:58,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 01:24:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 01:24:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1252 transitions. [2025-03-15 01:24:58,456 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8413978494623656 [2025-03-15 01:24:58,458 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 24 predicate places. [2025-03-15 01:24:58,459 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 433 transitions, 4828 flow [2025-03-15 01:24:58,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:58,459 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:58,460 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:58,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 01:24:58,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:58,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:58,460 INFO L85 PathProgramCache]: Analyzing trace with hash 397821147, now seen corresponding path program 1 times [2025-03-15 01:24:58,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:58,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13942745] [2025-03-15 01:24:58,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:58,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:58,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:58,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13942745] [2025-03-15 01:24:58,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13942745] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:58,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:24:58,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:24:58,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570989952] [2025-03-15 01:24:58,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:58,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:24:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:58,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:24:58,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 01:24:58,591 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 186 [2025-03-15 01:24:58,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 433 transitions, 4828 flow. Second operand has 6 states, 6 states have (on average 150.33333333333334) internal successors, (902), 6 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:58,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:58,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 186 [2025-03-15 01:24:58,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:24:59,248 INFO L124 PetriNetUnfolderBase]: 901/4927 cut-off events. [2025-03-15 01:24:59,248 INFO L125 PetriNetUnfolderBase]: For 66835/69827 co-relation queries the response was YES. [2025-03-15 01:24:59,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17449 conditions, 4927 events. 901/4927 cut-off events. For 66835/69827 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 41272 event pairs, 163 based on Foata normal form. 69/4371 useless extension candidates. Maximal degree in co-relation 15578. Up to 1283 conditions per place. [2025-03-15 01:24:59,274 INFO L140 encePairwiseOnDemand]: 177/186 looper letters, 362 selfloop transitions, 14 changer transitions 11/545 dead transitions. [2025-03-15 01:24:59,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 545 transitions, 7286 flow [2025-03-15 01:24:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 01:24:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 01:24:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1254 transitions. [2025-03-15 01:24:59,276 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.842741935483871 [2025-03-15 01:24:59,277 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 31 predicate places. [2025-03-15 01:24:59,277 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 545 transitions, 7286 flow [2025-03-15 01:24:59,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.33333333333334) internal successors, (902), 6 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:59,277 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:24:59,278 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:24:59,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 01:24:59,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:24:59,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:24:59,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1769542416, now seen corresponding path program 1 times [2025-03-15 01:24:59,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:24:59,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117435840] [2025-03-15 01:24:59,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:59,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:24:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:59,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:24:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117435840] [2025-03-15 01:24:59,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117435840] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:24:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281191870] [2025-03-15 01:24:59,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:24:59,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:24:59,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:24:59,402 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) [2025-03-15 01:24:59,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-15 01:24:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:24:59,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 01:24:59,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:24:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:24:59,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 01:24:59,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281191870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:24:59,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 01:24:59,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 01:24:59,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139811240] [2025-03-15 01:24:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:24:59,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:24:59,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:24:59,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:24:59,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 01:24:59,657 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 186 [2025-03-15 01:24:59,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 545 transitions, 7286 flow. Second operand has 6 states, 6 states have (on average 157.16666666666666) internal successors, (943), 6 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:24:59,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:24:59,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 186 [2025-03-15 01:24:59,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:00,611 INFO L124 PetriNetUnfolderBase]: 1001/5544 cut-off events. [2025-03-15 01:25:00,611 INFO L125 PetriNetUnfolderBase]: For 91663/94843 co-relation queries the response was YES. [2025-03-15 01:25:00,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 5544 events. 1001/5544 cut-off events. For 91663/94843 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 48481 event pairs, 201 based on Foata normal form. 70/4921 useless extension candidates. Maximal degree in co-relation 19408. Up to 1386 conditions per place. [2025-03-15 01:25:00,664 INFO L140 encePairwiseOnDemand]: 178/186 looper letters, 380 selfloop transitions, 19 changer transitions 12/591 dead transitions. [2025-03-15 01:25:00,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 591 transitions, 8943 flow [2025-03-15 01:25:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 01:25:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 01:25:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1294 transitions. [2025-03-15 01:25:00,668 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8696236559139785 [2025-03-15 01:25:00,669 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 38 predicate places. [2025-03-15 01:25:00,669 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 591 transitions, 8943 flow [2025-03-15 01:25:00,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.16666666666666) internal successors, (943), 6 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:00,670 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:00,670 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:00,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-15 01:25:00,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-15 01:25:00,871 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:00,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash 978760469, now seen corresponding path program 1 times [2025-03-15 01:25:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:00,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292986437] [2025-03-15 01:25:00,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:01,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:01,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292986437] [2025-03-15 01:25:01,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292986437] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:01,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856096513] [2025-03-15 01:25:01,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:01,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:01,020 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) [2025-03-15 01:25:01,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-15 01:25:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:01,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 01:25:01,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:01,239 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 01:25:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:01,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856096513] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 01:25:01,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 01:25:01,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 01:25:01,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222347257] [2025-03-15 01:25:01,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 01:25:01,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 01:25:01,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:01,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 01:25:01,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 01:25:01,383 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 186 [2025-03-15 01:25:01,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 591 transitions, 8943 flow. Second operand has 12 states, 12 states have (on average 158.16666666666666) internal successors, (1898), 12 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:01,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:01,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 186 [2025-03-15 01:25:01,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:02,410 INFO L124 PetriNetUnfolderBase]: 1374/6887 cut-off events. [2025-03-15 01:25:02,410 INFO L125 PetriNetUnfolderBase]: For 161969/167108 co-relation queries the response was YES. [2025-03-15 01:25:02,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29456 conditions, 6887 events. 1374/6887 cut-off events. For 161969/167108 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 60164 event pairs, 307 based on Foata normal form. 115/6117 useless extension candidates. Maximal degree in co-relation 26462. Up to 1875 conditions per place. [2025-03-15 01:25:02,464 INFO L140 encePairwiseOnDemand]: 177/186 looper letters, 522 selfloop transitions, 40 changer transitions 16/758 dead transitions. [2025-03-15 01:25:02,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 758 transitions, 13592 flow [2025-03-15 01:25:02,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-15 01:25:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-15 01:25:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2417 transitions. [2025-03-15 01:25:02,468 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8663082437275985 [2025-03-15 01:25:02,468 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 52 predicate places. [2025-03-15 01:25:02,468 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 758 transitions, 13592 flow [2025-03-15 01:25:02,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 158.16666666666666) internal successors, (1898), 12 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:02,469 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:02,469 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:02,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-15 01:25:02,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:02,670 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:02,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1776226137, now seen corresponding path program 1 times [2025-03-15 01:25:02,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:02,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661166193] [2025-03-15 01:25:02,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:02,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:02,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:02,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661166193] [2025-03-15 01:25:02,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661166193] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:02,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769540817] [2025-03-15 01:25:02,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:02,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:02,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:02,781 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) [2025-03-15 01:25:02,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-15 01:25:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:02,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 01:25:02,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:02,984 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:02,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 01:25:02,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769540817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:25:02,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 01:25:02,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 01:25:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644577180] [2025-03-15 01:25:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:25:02,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:25:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:02,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:25:02,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 01:25:02,985 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:25:02,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 758 transitions, 13592 flow. Second operand has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:02,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:02,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:25:02,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:04,032 INFO L124 PetriNetUnfolderBase]: 1396/7430 cut-off events. [2025-03-15 01:25:04,033 INFO L125 PetriNetUnfolderBase]: For 143135/151639 co-relation queries the response was YES. [2025-03-15 01:25:04,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32487 conditions, 7430 events. 1396/7430 cut-off events. For 143135/151639 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 65367 event pairs, 244 based on Foata normal form. 294/6880 useless extension candidates. Maximal degree in co-relation 29802. Up to 1884 conditions per place. [2025-03-15 01:25:04,088 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 474 selfloop transitions, 6 changer transitions 16/788 dead transitions. [2025-03-15 01:25:04,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 788 transitions, 15328 flow [2025-03-15 01:25:04,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 01:25:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 01:25:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1162 transitions. [2025-03-15 01:25:04,090 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8924731182795699 [2025-03-15 01:25:04,091 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 57 predicate places. [2025-03-15 01:25:04,091 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 788 transitions, 15328 flow [2025-03-15 01:25:04,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:04,091 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:04,091 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:04,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-15 01:25:04,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:04,296 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:04,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash 771565135, now seen corresponding path program 1 times [2025-03-15 01:25:04,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:04,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031650272] [2025-03-15 01:25:04,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:04,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 01:25:04,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:04,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031650272] [2025-03-15 01:25:04,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031650272] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:25:04,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:25:04,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:25:04,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843940696] [2025-03-15 01:25:04,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:25:04,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:25:04,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:04,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:25:04,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:25:04,384 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:25:04,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 788 transitions, 15328 flow. Second operand has 4 states, 4 states have (on average 164.25) internal successors, (657), 4 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:04,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:04,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:25:04,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:05,439 INFO L124 PetriNetUnfolderBase]: 1385/7647 cut-off events. [2025-03-15 01:25:05,440 INFO L125 PetriNetUnfolderBase]: For 156309/167328 co-relation queries the response was YES. [2025-03-15 01:25:05,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34779 conditions, 7647 events. 1385/7647 cut-off events. For 156309/167328 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 68091 event pairs, 192 based on Foata normal form. 587/7412 useless extension candidates. Maximal degree in co-relation 31527. Up to 1992 conditions per place. [2025-03-15 01:25:05,499 INFO L140 encePairwiseOnDemand]: 180/186 looper letters, 543 selfloop transitions, 8 changer transitions 16/859 dead transitions. [2025-03-15 01:25:05,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 859 transitions, 18347 flow [2025-03-15 01:25:05,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:25:05,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:25:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 828 transitions. [2025-03-15 01:25:05,501 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8903225806451613 [2025-03-15 01:25:05,501 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 60 predicate places. [2025-03-15 01:25:05,501 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 859 transitions, 18347 flow [2025-03-15 01:25:05,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.25) internal successors, (657), 4 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:05,502 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:05,502 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:05,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-15 01:25:05,502 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:05,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:05,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1551809791, now seen corresponding path program 1 times [2025-03-15 01:25:05,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:05,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773421588] [2025-03-15 01:25:05,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:05,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:05,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:05,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773421588] [2025-03-15 01:25:05,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773421588] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:05,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059957588] [2025-03-15 01:25:05,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:05,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:05,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:05,673 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) [2025-03-15 01:25:05,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-15 01:25:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:05,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 01:25:05,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:05,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 01:25:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:06,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059957588] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 01:25:06,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 01:25:06,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2025-03-15 01:25:06,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524532167] [2025-03-15 01:25:06,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 01:25:06,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-15 01:25:06,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:06,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-15 01:25:06,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2025-03-15 01:25:06,105 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 186 [2025-03-15 01:25:06,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 859 transitions, 18347 flow. Second operand has 14 states, 14 states have (on average 152.07142857142858) internal successors, (2129), 14 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:06,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:06,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 186 [2025-03-15 01:25:06,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:08,025 INFO L124 PetriNetUnfolderBase]: 1796/9445 cut-off events. [2025-03-15 01:25:08,026 INFO L125 PetriNetUnfolderBase]: For 221195/230016 co-relation queries the response was YES. [2025-03-15 01:25:08,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46834 conditions, 9445 events. 1796/9445 cut-off events. For 221195/230016 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 86604 event pairs, 209 based on Foata normal form. 136/8568 useless extension candidates. Maximal degree in co-relation 43245. Up to 2476 conditions per place. [2025-03-15 01:25:08,094 INFO L140 encePairwiseOnDemand]: 173/186 looper letters, 898 selfloop transitions, 81 changer transitions 23/1158 dead transitions. [2025-03-15 01:25:08,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 1158 transitions, 26798 flow [2025-03-15 01:25:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-15 01:25:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2025-03-15 01:25:08,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4135 transitions. [2025-03-15 01:25:08,100 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8233771405814416 [2025-03-15 01:25:08,100 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 86 predicate places. [2025-03-15 01:25:08,100 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 1158 transitions, 26798 flow [2025-03-15 01:25:08,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.07142857142858) internal successors, (2129), 14 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:08,101 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:08,101 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:08,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-15 01:25:08,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-15 01:25:08,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:08,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash -757563897, now seen corresponding path program 1 times [2025-03-15 01:25:08,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:08,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387804303] [2025-03-15 01:25:08,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:08,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387804303] [2025-03-15 01:25:08,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387804303] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989035704] [2025-03-15 01:25:08,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:08,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:08,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:08,431 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 01:25:08,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-15 01:25:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:08,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 01:25:08,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:08,664 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 01:25:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:08,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989035704] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 01:25:08,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 01:25:08,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-03-15 01:25:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720042316] [2025-03-15 01:25:08,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 01:25:08,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-15 01:25:08,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:08,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-15 01:25:08,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2025-03-15 01:25:08,839 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 186 [2025-03-15 01:25:08,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 1158 transitions, 26798 flow. Second operand has 16 states, 16 states have (on average 151.5625) internal successors, (2425), 16 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:08,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:08,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 186 [2025-03-15 01:25:08,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:11,966 INFO L124 PetriNetUnfolderBase]: 2296/12919 cut-off events. [2025-03-15 01:25:11,967 INFO L125 PetriNetUnfolderBase]: For 320060/331342 co-relation queries the response was YES. [2025-03-15 01:25:12,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65585 conditions, 12919 events. 2296/12919 cut-off events. For 320060/331342 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 125400 event pairs, 309 based on Foata normal form. 125/11770 useless extension candidates. Maximal degree in co-relation 62162. Up to 3454 conditions per place. [2025-03-15 01:25:12,058 INFO L140 encePairwiseOnDemand]: 173/186 looper letters, 1127 selfloop transitions, 118 changer transitions 30/1431 dead transitions. [2025-03-15 01:25:12,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 1431 transitions, 36055 flow [2025-03-15 01:25:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-15 01:25:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-15 01:25:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3517 transitions. [2025-03-15 01:25:12,060 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8221131369798972 [2025-03-15 01:25:12,060 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 104 predicate places. [2025-03-15 01:25:12,061 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 1431 transitions, 36055 flow [2025-03-15 01:25:12,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 151.5625) internal successors, (2425), 16 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:12,061 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:12,061 INFO L221 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:12,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-15 01:25:12,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-15 01:25:12,262 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:12,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:12,263 INFO L85 PathProgramCache]: Analyzing trace with hash -42804523, now seen corresponding path program 1 times [2025-03-15 01:25:12,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:12,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744425016] [2025-03-15 01:25:12,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:12,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:12,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:12,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744425016] [2025-03-15 01:25:12,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744425016] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:12,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41747459] [2025-03-15 01:25:12,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:12,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:12,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:12,484 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 01:25:12,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-15 01:25:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:12,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-15 01:25:12,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:12,813 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 01:25:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:13,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41747459] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 01:25:13,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 01:25:13,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2025-03-15 01:25:13,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925741905] [2025-03-15 01:25:13,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 01:25:13,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-15 01:25:13,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:13,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-15 01:25:13,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2025-03-15 01:25:13,096 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 186 [2025-03-15 01:25:13,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 1431 transitions, 36055 flow. Second operand has 20 states, 20 states have (on average 152.35) internal successors, (3047), 20 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:13,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:13,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 186 [2025-03-15 01:25:13,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:20,108 INFO L124 PetriNetUnfolderBase]: 3880/22687 cut-off events. [2025-03-15 01:25:20,109 INFO L125 PetriNetUnfolderBase]: For 589185/607130 co-relation queries the response was YES. [2025-03-15 01:25:20,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119620 conditions, 22687 events. 3880/22687 cut-off events. For 589185/607130 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 244102 event pairs, 604 based on Foata normal form. 119/20586 useless extension candidates. Maximal degree in co-relation 113990. Up to 5975 conditions per place. [2025-03-15 01:25:20,341 INFO L140 encePairwiseOnDemand]: 174/186 looper letters, 1883 selfloop transitions, 213 changer transitions 49/2301 dead transitions. [2025-03-15 01:25:20,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 2301 transitions, 64548 flow [2025-03-15 01:25:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-03-15 01:25:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2025-03-15 01:25:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 5802 transitions. [2025-03-15 01:25:20,346 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8208828522920204 [2025-03-15 01:25:20,347 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 140 predicate places. [2025-03-15 01:25:20,347 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 2301 transitions, 64548 flow [2025-03-15 01:25:20,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 152.35) internal successors, (3047), 20 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:20,348 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:20,348 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:20,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-15 01:25:20,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:20,549 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:20,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1602474023, now seen corresponding path program 2 times [2025-03-15 01:25:20,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:20,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320927199] [2025-03-15 01:25:20,550 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 01:25:20,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:20,602 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 01:25:20,603 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 01:25:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:21,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:21,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320927199] [2025-03-15 01:25:21,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320927199] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:21,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420084784] [2025-03-15 01:25:21,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 01:25:21,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:21,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:21,173 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 01:25:21,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-15 01:25:21,287 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 01:25:21,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 01:25:21,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-15 01:25:21,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:21,547 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 01:25:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:21,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420084784] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 01:25:21,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 01:25:21,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 27 [2025-03-15 01:25:21,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568049443] [2025-03-15 01:25:21,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 01:25:21,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-15 01:25:21,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:21,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-15 01:25:21,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2025-03-15 01:25:21,901 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 186 [2025-03-15 01:25:21,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 2301 transitions, 64548 flow. Second operand has 28 states, 28 states have (on average 144.03571428571428) internal successors, (4033), 28 states have internal predecessors, (4033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:21,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:21,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 186 [2025-03-15 01:25:21,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:33,757 INFO L124 PetriNetUnfolderBase]: 4580/27936 cut-off events. [2025-03-15 01:25:33,758 INFO L125 PetriNetUnfolderBase]: For 768590/788526 co-relation queries the response was YES. [2025-03-15 01:25:33,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155776 conditions, 27936 events. 4580/27936 cut-off events. For 768590/788526 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 313246 event pairs, 620 based on Foata normal form. 118/25499 useless extension candidates. Maximal degree in co-relation 148851. Up to 7373 conditions per place. [2025-03-15 01:25:33,948 INFO L140 encePairwiseOnDemand]: 168/186 looper letters, 1797 selfloop transitions, 313 changer transitions 708/2952 dead transitions. [2025-03-15 01:25:33,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 2952 transitions, 90488 flow [2025-03-15 01:25:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-15 01:25:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-15 01:25:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2709 transitions. [2025-03-15 01:25:33,950 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.766553480475382 [2025-03-15 01:25:33,950 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 142 predicate places. [2025-03-15 01:25:33,950 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 2952 transitions, 90488 flow [2025-03-15 01:25:33,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 144.03571428571428) internal successors, (4033), 28 states have internal predecessors, (4033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:33,952 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:33,952 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:33,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-15 01:25:34,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-15 01:25:34,156 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:34,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:34,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1506375871, now seen corresponding path program 1 times [2025-03-15 01:25:34,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:34,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607087955] [2025-03-15 01:25:34,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:34,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:34,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:34,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607087955] [2025-03-15 01:25:34,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607087955] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:34,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552013539] [2025-03-15 01:25:34,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:25:34,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:34,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:34,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 01:25:34,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-15 01:25:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:25:34,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-15 01:25:34,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:34,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 01:25:35,348 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:35,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552013539] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 01:25:35,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 01:25:35,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2025-03-15 01:25:35,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223159510] [2025-03-15 01:25:35,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 01:25:35,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-15 01:25:35,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:35,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-15 01:25:35,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2025-03-15 01:25:35,351 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 186 [2025-03-15 01:25:35,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 2952 transitions, 90488 flow. Second operand has 20 states, 20 states have (on average 152.95) internal successors, (3059), 20 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:35,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:35,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 186 [2025-03-15 01:25:35,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:25:57,525 INFO L124 PetriNetUnfolderBase]: 7570/45920 cut-off events. [2025-03-15 01:25:57,526 INFO L125 PetriNetUnfolderBase]: For 1431071/1465009 co-relation queries the response was YES. [2025-03-15 01:25:57,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269073 conditions, 45920 events. 7570/45920 cut-off events. For 1431071/1465009 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 539494 event pairs, 1005 based on Foata normal form. 178/41892 useless extension candidates. Maximal degree in co-relation 261159. Up to 12913 conditions per place. [2025-03-15 01:25:57,965 INFO L140 encePairwiseOnDemand]: 176/186 looper letters, 3130 selfloop transitions, 442 changer transitions 1222/4963 dead transitions. [2025-03-15 01:25:57,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 4963 transitions, 162538 flow [2025-03-15 01:25:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-15 01:25:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-15 01:25:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4770 transitions. [2025-03-15 01:25:57,968 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8272632674297606 [2025-03-15 01:25:57,969 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 172 predicate places. [2025-03-15 01:25:57,969 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 4963 transitions, 162538 flow [2025-03-15 01:25:57,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 152.95) internal successors, (3059), 20 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:57,970 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:25:57,970 INFO L221 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:25:57,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-15 01:25:58,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-15 01:25:58,171 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-15 01:25:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:25:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash -502523271, now seen corresponding path program 2 times [2025-03-15 01:25:58,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:25:58,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63196722] [2025-03-15 01:25:58,172 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 01:25:58,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:25:58,213 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 01:25:58,214 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 01:25:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 858 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:25:58,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:25:58,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63196722] [2025-03-15 01:25:58,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63196722] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 01:25:58,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323770408] [2025-03-15 01:25:58,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 01:25:58,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:25:58,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:25:58,568 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 01:25:58,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-15 01:25:58,704 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 01:25:58,704 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 01:25:58,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-15 01:25:58,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 01:25:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 831 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-15 01:25:59,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 01:25:59,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323770408] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:25:59,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 01:25:59,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 27 [2025-03-15 01:25:59,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843704122] [2025-03-15 01:25:59,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:25:59,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-15 01:25:59,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:25:59,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-15 01:25:59,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2025-03-15 01:25:59,036 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 186 [2025-03-15 01:25:59,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 4963 transitions, 162538 flow. Second operand has 13 states, 13 states have (on average 164.0) internal successors, (2132), 13 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:25:59,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:25:59,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 186 [2025-03-15 01:25:59,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:26:36,134 INFO L124 PetriNetUnfolderBase]: 8113/49531 cut-off events. [2025-03-15 01:26:36,135 INFO L125 PetriNetUnfolderBase]: For 1587725/1641099 co-relation queries the response was YES. [2025-03-15 01:26:36,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298111 conditions, 49531 events. 8113/49531 cut-off events. For 1587725/1641099 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 591250 event pairs, 786 based on Foata normal form. 4136/49246 useless extension candidates. Maximal degree in co-relation 292282. Up to 14146 conditions per place. [2025-03-15 01:26:36,587 INFO L140 encePairwiseOnDemand]: 180/186 looper letters, 0 selfloop transitions, 0 changer transitions 5062/5062 dead transitions. [2025-03-15 01:26:36,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 5062 transitions, 179365 flow [2025-03-15 01:26:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-15 01:26:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-15 01:26:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2982 transitions. [2025-03-15 01:26:36,589 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8906810035842294 [2025-03-15 01:26:36,589 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 180 predicate places. [2025-03-15 01:26:36,589 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 5062 transitions, 179365 flow [2025-03-15 01:26:36,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 164.0) internal successors, (2132), 13 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:26:36,596 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/stack-2.i_petrified1_AllErrorsAtOnce [2025-03-15 01:26:36,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2025-03-15 01:26:36,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2025-03-15 01:26:36,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-15 01:26:36,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-15 01:26:36,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-15 01:26:37,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 01:26:37,045 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:26:37,048 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 01:26:37,048 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 01:26:37,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:26:37 BasicIcfg [2025-03-15 01:26:37,052 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 01:26:37,053 INFO L158 Benchmark]: Toolchain (without parser) took 105263.25ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 42.4MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2025-03-15 01:26:37,053 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:26:37,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.13ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 38.1MB in the end (delta: 4.1MB). Peak memory consumption was 29.5MB. Max. memory is 8.0GB. [2025-03-15 01:26:37,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.81ms. Allocated memory is still 71.3MB. Free memory was 38.1MB in the beginning and 35.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:26:37,055 INFO L158 Benchmark]: Boogie Preprocessor took 21.24ms. Allocated memory is still 71.3MB. Free memory was 35.4MB in the beginning and 34.1MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 01:26:37,055 INFO L158 Benchmark]: RCFGBuilder took 439.69ms. Allocated memory is still 71.3MB. Free memory was 34.1MB in the beginning and 39.7MB in the end (delta: -5.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2025-03-15 01:26:37,056 INFO L158 Benchmark]: TraceAbstraction took 104278.60ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 38.3MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2025-03-15 01:26:37,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.13ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 38.1MB in the end (delta: 4.1MB). Peak memory consumption was 29.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.81ms. Allocated memory is still 71.3MB. Free memory was 38.1MB in the beginning and 35.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 21.24ms. Allocated memory is still 71.3MB. Free memory was 35.4MB in the beginning and 34.1MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 439.69ms. Allocated memory is still 71.3MB. Free memory was 34.1MB in the beginning and 39.7MB in the end (delta: -5.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 104278.60ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 38.3MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 946]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 946]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 992]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 992]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1007]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1007]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 950]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 950]: 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 5 procedures, 310 locations, 18 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: 104.1s, OverallIterations: 19, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 93.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1334 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1334 mSDsluCounter, 750 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 578 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3250 IncrementalHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 172 mSDtfsCounter, 3250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3372 GetRequests, 3073 SyntacticMatches, 1 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1914 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179365occurred in iteration=19, InterpolantAutomatonStates: 242, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 4481 NumberOfCodeBlocks, 4481 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 5695 ConstructedInterpolants, 0 QuantifiedInterpolants, 17161 SizeOfPredicates, 64 NumberOfNonLiveVariables, 3744 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 35 InterpolantComputations, 13 PerfectInterpolantSequences, 989/3923 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 01:26:37,070 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...