/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-theta/unwind3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 03:12:58,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 03:12:58,255 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 03:12:58,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 03:12:58,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 03:12:58,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 03:12:58,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 03:12:58,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 03:12:58,292 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 03:12:58,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 03:12:58,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 03:12:58,292 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 03:12:58,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 03:12:58,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 03:12:58,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 03:12:58,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 03:12:58,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 03:12:58,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 03:12:58,295 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 03:12:58,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 03:12:58,295 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 03:12:58,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 03:12:58,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 03:12:58,296 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 03:12:58,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 03:12:58,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:12:58,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 03:12:58,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 03:12:58,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 03:12:58,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 03:12:58,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 03:12:58,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 03:12:58,297 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 03:12:58,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 03:12:58,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 03:12:58,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 03:12:58,591 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 03:12:58,592 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 03:12:58,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-theta/unwind3-1.i [2025-03-15 03:12:59,751 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa29cfaad/5a582176660747278ef0c74d0c3cdf28/FLAGfa5729109 [2025-03-15 03:13:00,024 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 03:13:00,025 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/unwind3-1.i [2025-03-15 03:13:00,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa29cfaad/5a582176660747278ef0c74d0c3cdf28/FLAGfa5729109 [2025-03-15 03:13:00,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa29cfaad/5a582176660747278ef0c74d0c3cdf28 [2025-03-15 03:13:00,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 03:13:00,066 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 03:13:00,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 03:13:00,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 03:13:00,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 03:13:00,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f691ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00, skipping insertion in model container [2025-03-15 03:13:00,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 03:13:00,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:13:00,411 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 03:13:00,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:13:00,490 INFO L204 MainTranslator]: Completed translation [2025-03-15 03:13:00,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00 WrapperNode [2025-03-15 03:13:00,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 03:13:00,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 03:13:00,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 03:13:00,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 03:13:00,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,528 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2025-03-15 03:13:00,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 03:13:00,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 03:13:00,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 03:13:00,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 03:13:00,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,546 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 03:13:00,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 03:13:00,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 03:13:00,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 03:13:00,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (1/1) ... [2025-03-15 03:13:00,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:13:00,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:13:00,597 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 03:13:00,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-15 03:13:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 03:13:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-03-15 03:13:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-03-15 03:13:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-03-15 03:13:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-03-15 03:13:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 03:13:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 03:13:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 03:13:00,662 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 03:13:00,797 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 03:13:00,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 03:13:00,957 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 03:13:00,957 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 03:13:00,968 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 03:13:00,969 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 03:13:00,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:13:00 BoogieIcfgContainer [2025-03-15 03:13:00,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 03:13:00,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 03:13:00,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 03:13:00,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 03:13:00,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:13:00" (1/3) ... [2025-03-15 03:13:00,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fdf549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:13:00, skipping insertion in model container [2025-03-15 03:13:00,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:13:00" (2/3) ... [2025-03-15 03:13:00,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fdf549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:13:00, skipping insertion in model container [2025-03-15 03:13:00,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:13:00" (3/3) ... [2025-03-15 03:13:00,980 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind3-1.i [2025-03-15 03:13:00,994 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 03:13:00,996 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind3-1.i that has 3 procedures, 91 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-03-15 03:13:00,996 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 03:13:01,073 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 03:13:01,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 03:13:01,139 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;@57d0a088, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 03:13:01,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2025-03-15 03:13:01,174 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 03:13:01,174 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2025-03-15 03:13:01,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 03:13:01,177 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:01,177 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] [2025-03-15 03:13:01,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:01,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:01,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1249464737, now seen corresponding path program 1 times [2025-03-15 03:13:01,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:01,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045639417] [2025-03-15 03:13:01,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:01,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:01,497 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 03:13:01,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045639417] [2025-03-15 03:13:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045639417] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:01,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:13:01,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 03:13:01,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360353204] [2025-03-15 03:13:01,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:01,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:13:01,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:01,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:13:01,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:13:01,528 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 95 [2025-03-15 03:13:01,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:13:01,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:01,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 95 [2025-03-15 03:13:01,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:01,695 INFO L124 PetriNetUnfolderBase]: 37/224 cut-off events. [2025-03-15 03:13:01,697 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-15 03:13:01,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 224 events. 37/224 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 872 event pairs, 7 based on Foata normal form. 11/209 useless extension candidates. Maximal degree in co-relation 251. Up to 45 conditions per place. [2025-03-15 03:13:01,705 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 19 selfloop transitions, 4 changer transitions 21/99 dead transitions. [2025-03-15 03:13:01,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 99 transitions, 275 flow [2025-03-15 03:13:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 03:13:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 03:13:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2025-03-15 03:13:01,722 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8087719298245614 [2025-03-15 03:13:01,725 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, -2 predicate places. [2025-03-15 03:13:01,725 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 99 transitions, 275 flow [2025-03-15 03:13:01,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:13:01,726 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:01,726 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] [2025-03-15 03:13:01,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 03:13:01,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:01,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:01,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1247931686, now seen corresponding path program 1 times [2025-03-15 03:13:01,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:01,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382601410] [2025-03-15 03:13:01,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:01,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:01,824 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 03:13:01,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:01,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382601410] [2025-03-15 03:13:01,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382601410] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:01,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:13:01,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 03:13:01,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236795919] [2025-03-15 03:13:01,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:01,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 03:13:01,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:01,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 03:13:01,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 03:13:01,827 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2025-03-15 03:13:01,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 99 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:13:01,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:01,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2025-03-15 03:13:01,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:01,923 INFO L124 PetriNetUnfolderBase]: 37/238 cut-off events. [2025-03-15 03:13:01,924 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-03-15 03:13:01,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 238 events. 37/238 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 911 event pairs, 11 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 289. Up to 45 conditions per place. [2025-03-15 03:13:01,926 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 18 selfloop transitions, 3 changer transitions 21/100 dead transitions. [2025-03-15 03:13:01,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 323 flow [2025-03-15 03:13:01,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 03:13:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 03:13:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2025-03-15 03:13:01,930 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8701754385964913 [2025-03-15 03:13:01,932 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, -2 predicate places. [2025-03-15 03:13:01,932 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 100 transitions, 323 flow [2025-03-15 03:13:01,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:13:01,932 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:01,932 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] [2025-03-15 03:13:01,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 03:13:01,933 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:01,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:01,933 INFO L85 PathProgramCache]: Analyzing trace with hash -387542505, now seen corresponding path program 1 times [2025-03-15 03:13:01,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:01,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568494074] [2025-03-15 03:13:01,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:01,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:02,051 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 03:13:02,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:02,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568494074] [2025-03-15 03:13:02,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568494074] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:02,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:13:02,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 03:13:02,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102770127] [2025-03-15 03:13:02,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:02,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:13:02,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:02,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:13:02,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:13:02,056 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 95 [2025-03-15 03:13:02,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 100 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 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 03:13:02,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:02,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 95 [2025-03-15 03:13:02,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:02,166 INFO L124 PetriNetUnfolderBase]: 65/286 cut-off events. [2025-03-15 03:13:02,166 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-03-15 03:13:02,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 286 events. 65/286 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1259 event pairs, 23 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 501. Up to 77 conditions per place. [2025-03-15 03:13:02,169 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 20 selfloop transitions, 3 changer transitions 20/98 dead transitions. [2025-03-15 03:13:02,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 377 flow [2025-03-15 03:13:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 03:13:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 03:13:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2025-03-15 03:13:02,172 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7710526315789473 [2025-03-15 03:13:02,172 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places. [2025-03-15 03:13:02,172 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 98 transitions, 377 flow [2025-03-15 03:13:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 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 03:13:02,173 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:02,173 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 03:13:02,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 03:13:02,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:02,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1120479933, now seen corresponding path program 1 times [2025-03-15 03:13:02,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:02,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471170254] [2025-03-15 03:13:02,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:02,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:02,317 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 03:13:02,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:02,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471170254] [2025-03-15 03:13:02,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471170254] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:02,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:13:02,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:13:02,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750340969] [2025-03-15 03:13:02,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:02,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:13:02,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:02,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:13:02,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:13:02,320 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 95 [2025-03-15 03:13:02,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 98 transitions, 377 flow. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:13:02,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:02,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 95 [2025-03-15 03:13:02,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:02,402 INFO L124 PetriNetUnfolderBase]: 60/265 cut-off events. [2025-03-15 03:13:02,402 INFO L125 PetriNetUnfolderBase]: For 188/198 co-relation queries the response was YES. [2025-03-15 03:13:02,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 265 events. 60/265 cut-off events. For 188/198 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1117 event pairs, 22 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 530. Up to 71 conditions per place. [2025-03-15 03:13:02,404 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 16 selfloop transitions, 4 changer transitions 20/94 dead transitions. [2025-03-15 03:13:02,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 94 transitions, 408 flow [2025-03-15 03:13:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:13:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:13:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 360 transitions. [2025-03-15 03:13:02,406 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7578947368421053 [2025-03-15 03:13:02,406 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 4 predicate places. [2025-03-15 03:13:02,406 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 94 transitions, 408 flow [2025-03-15 03:13:02,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:13:02,407 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:02,407 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 03:13:02,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 03:13:02,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:02,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:02,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2072000274, now seen corresponding path program 1 times [2025-03-15 03:13:02,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:02,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347735955] [2025-03-15 03:13:02,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:02,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:02,469 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 03:13:02,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:02,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347735955] [2025-03-15 03:13:02,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347735955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:02,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:13:02,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:13:02,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786670358] [2025-03-15 03:13:02,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:02,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:13:02,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:02,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:13:02,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:13:02,471 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2025-03-15 03:13:02,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 94 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 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 03:13:02,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:02,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2025-03-15 03:13:02,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:02,558 INFO L124 PetriNetUnfolderBase]: 103/421 cut-off events. [2025-03-15 03:13:02,559 INFO L125 PetriNetUnfolderBase]: For 326/342 co-relation queries the response was YES. [2025-03-15 03:13:02,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 421 events. 103/421 cut-off events. For 326/342 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2216 event pairs, 41 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 939. Up to 122 conditions per place. [2025-03-15 03:13:02,565 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 18 selfloop transitions, 4 changer transitions 23/104 dead transitions. [2025-03-15 03:13:02,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 104 transitions, 502 flow [2025-03-15 03:13:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:13:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:13:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 409 transitions. [2025-03-15 03:13:02,567 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8610526315789474 [2025-03-15 03:13:02,568 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 8 predicate places. [2025-03-15 03:13:02,568 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 502 flow [2025-03-15 03:13:02,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 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 03:13:02,568 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:02,569 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 03:13:02,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 03:13:02,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:02,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:02,569 INFO L85 PathProgramCache]: Analyzing trace with hash -543985814, now seen corresponding path program 1 times [2025-03-15 03:13:02,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:02,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108220019] [2025-03-15 03:13:02,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:02,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:02,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108220019] [2025-03-15 03:13:02,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108220019] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:13:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122084290] [2025-03-15 03:13:02,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:02,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:13:02,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:13:02,685 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 03:13:02,688 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 03:13:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:02,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 03:13:02,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:13:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:02,969 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 03:13:02,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122084290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 03:13:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2025-03-15 03:13:02,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639947357] [2025-03-15 03:13:02,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:02,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 03:13:02,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:02,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 03:13:02,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-15 03:13:02,971 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 95 [2025-03-15 03:13:02,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 502 flow. Second operand has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 0 states have call successors, (0), 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 03:13:02,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:02,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 95 [2025-03-15 03:13:02,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:03,255 INFO L124 PetriNetUnfolderBase]: 127/637 cut-off events. [2025-03-15 03:13:03,255 INFO L125 PetriNetUnfolderBase]: For 540/615 co-relation queries the response was YES. [2025-03-15 03:13:03,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 637 events. 127/637 cut-off events. For 540/615 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4245 event pairs, 75 based on Foata normal form. 11/581 useless extension candidates. Maximal degree in co-relation 1460. Up to 144 conditions per place. [2025-03-15 03:13:03,258 INFO L140 encePairwiseOnDemand]: 86/95 looper letters, 32 selfloop transitions, 3 changer transitions 65/144 dead transitions. [2025-03-15 03:13:03,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 144 transitions, 882 flow [2025-03-15 03:13:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 03:13:03,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 03:13:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 942 transitions. [2025-03-15 03:13:03,260 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7082706766917293 [2025-03-15 03:13:03,261 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 21 predicate places. [2025-03-15 03:13:03,261 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 144 transitions, 882 flow [2025-03-15 03:13:03,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 0 states have call successors, (0), 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 03:13:03,261 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:03,261 INFO L221 CegarLoopForPetriNet]: trace histogram [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 03:13:03,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-15 03:13:03,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-15 03:13:03,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:03,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash -67197458, now seen corresponding path program 1 times [2025-03-15 03:13:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:03,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987966323] [2025-03-15 03:13:03,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:03,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:03,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987966323] [2025-03-15 03:13:03,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987966323] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:13:03,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678384185] [2025-03-15 03:13:03,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:13:03,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:13:03,573 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 03:13:03,575 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 03:13:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:03,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 03:13:03,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:13:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:03,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 03:13:03,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678384185] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:13:03,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 03:13:03,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 03:13:03,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448482974] [2025-03-15 03:13:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:13:03,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:13:03,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:03,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:13:03,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 03:13:03,683 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2025-03-15 03:13:03,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 144 transitions, 882 flow. Second operand has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 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 03:13:03,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:03,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2025-03-15 03:13:03,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:03,835 INFO L124 PetriNetUnfolderBase]: 127/644 cut-off events. [2025-03-15 03:13:03,835 INFO L125 PetriNetUnfolderBase]: For 611/662 co-relation queries the response was YES. [2025-03-15 03:13:03,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 644 events. 127/644 cut-off events. For 611/662 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4315 event pairs, 77 based on Foata normal form. 0/578 useless extension candidates. Maximal degree in co-relation 1547. Up to 144 conditions per place. [2025-03-15 03:13:03,845 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 14 selfloop transitions, 6 changer transitions 65/143 dead transitions. [2025-03-15 03:13:03,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 143 transitions, 972 flow [2025-03-15 03:13:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:13:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:13:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 561 transitions. [2025-03-15 03:13:03,848 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.843609022556391 [2025-03-15 03:13:03,849 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 26 predicate places. [2025-03-15 03:13:03,849 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 143 transitions, 972 flow [2025-03-15 03:13:03,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 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 03:13:03,849 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:03,849 INFO L221 CegarLoopForPetriNet]: trace histogram [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 03:13:03,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-15 03:13:04,050 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,SelfDestructingSolverStorable6 [2025-03-15 03:13:04,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:04,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:04,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1783631458, now seen corresponding path program 1 times [2025-03-15 03:13:04,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:04,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016060345] [2025-03-15 03:13:04,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:04,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:04,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:04,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016060345] [2025-03-15 03:13:04,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016060345] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:13:04,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725331303] [2025-03-15 03:13:04,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:13:04,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:13:04,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:13:04,156 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 03:13:04,158 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 03:13:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:13:04,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 03:13:04,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:13:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:04,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:13:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:13:04,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725331303] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:13:04,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:13:04,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 03:13:04,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674672590] [2025-03-15 03:13:04,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:13:04,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 03:13:04,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:04,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 03:13:04,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 03:13:04,290 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2025-03-15 03:13:04,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 143 transitions, 972 flow. Second operand has 12 states, 12 states have (on average 79.58333333333333) internal successors, (955), 12 states have internal predecessors, (955), 0 states have call successors, (0), 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 03:13:04,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:04,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2025-03-15 03:13:04,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:04,485 INFO L124 PetriNetUnfolderBase]: 136/759 cut-off events. [2025-03-15 03:13:04,485 INFO L125 PetriNetUnfolderBase]: For 835/892 co-relation queries the response was YES. [2025-03-15 03:13:04,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 759 events. 136/759 cut-off events. For 835/892 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4946 event pairs, 86 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 1944. Up to 172 conditions per place. [2025-03-15 03:13:04,488 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 23 selfloop transitions, 14 changer transitions 71/166 dead transitions. [2025-03-15 03:13:04,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 166 transitions, 1316 flow [2025-03-15 03:13:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 03:13:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 03:13:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1125 transitions. [2025-03-15 03:13:04,491 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8458646616541353 [2025-03-15 03:13:04,492 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 39 predicate places. [2025-03-15 03:13:04,492 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 166 transitions, 1316 flow [2025-03-15 03:13:04,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 79.58333333333333) internal successors, (955), 12 states have internal predecessors, (955), 0 states have call successors, (0), 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 03:13:04,493 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:13:04,493 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 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] [2025-03-15 03:13:04,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-15 03:13:04,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:13:04,694 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2025-03-15 03:13:04,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:13:04,694 INFO L85 PathProgramCache]: Analyzing trace with hash 150653978, now seen corresponding path program 2 times [2025-03-15 03:13:04,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:13:04,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65182550] [2025-03-15 03:13:04,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:13:04,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:13:04,706 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:13:04,708 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:13:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-15 03:13:04,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:13:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65182550] [2025-03-15 03:13:04,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65182550] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:13:04,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521886565] [2025-03-15 03:13:04,813 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:13:04,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:13:04,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:13:04,815 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 03:13:04,817 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 03:13:04,867 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:13:04,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:13:04,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-15 03:13:04,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:13:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-15 03:13:04,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:13:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-15 03:13:05,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521886565] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:13:05,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:13:05,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-03-15 03:13:05,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708118509] [2025-03-15 03:13:05,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:13:05,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-15 03:13:05,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:13:05,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-15 03:13:05,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2025-03-15 03:13:05,210 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 95 [2025-03-15 03:13:05,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 166 transitions, 1316 flow. Second operand has 19 states, 19 states have (on average 60.578947368421055) internal successors, (1151), 19 states have internal predecessors, (1151), 0 states have call successors, (0), 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 03:13:05,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:13:05,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 95 [2025-03-15 03:13:05,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:13:05,721 INFO L124 PetriNetUnfolderBase]: 169/824 cut-off events. [2025-03-15 03:13:05,721 INFO L125 PetriNetUnfolderBase]: For 1052/1139 co-relation queries the response was YES. [2025-03-15 03:13:05,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2574 conditions, 824 events. 169/824 cut-off events. For 1052/1139 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5172 event pairs, 60 based on Foata normal form. 10/766 useless extension candidates. Maximal degree in co-relation 2490. Up to 171 conditions per place. [2025-03-15 03:13:05,726 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 0 selfloop transitions, 0 changer transitions 193/193 dead transitions. [2025-03-15 03:13:05,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 193 transitions, 1772 flow [2025-03-15 03:13:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-15 03:13:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-15 03:13:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1410 transitions. [2025-03-15 03:13:05,730 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6453089244851259 [2025-03-15 03:13:05,730 INFO L298 CegarLoopForPetriNet]: 97 programPoint places, 60 predicate places. [2025-03-15 03:13:05,731 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 193 transitions, 1772 flow [2025-03-15 03:13:05,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 60.578947368421055) internal successors, (1151), 19 states have internal predecessors, (1151), 0 states have call successors, (0), 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 03:13:05,738 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/unwind3-1.i_petrified1_AllErrorsAtOnce [2025-03-15 03:13:05,766 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2025-03-15 03:13:05,766 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2025-03-15 03:13:05,766 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2025-03-15 03:13:05,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2025-03-15 03:13:05,775 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 03:13:05,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:13:05,968 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:13:05,973 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 03:13:05,973 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 03:13:05,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:13:05 BasicIcfg [2025-03-15 03:13:05,978 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 03:13:05,978 INFO L158 Benchmark]: Toolchain (without parser) took 5912.95ms. Allocated memory was 71.3MB in the beginning and 134.2MB in the end (delta: 62.9MB). Free memory was 42.7MB in the beginning and 71.3MB in the end (delta: -28.6MB). Peak memory consumption was 68.7MB. Max. memory is 8.0GB. [2025-03-15 03:13:05,979 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:13:05,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.45ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 22.8MB in the end (delta: 19.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 03:13:05,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.93ms. Allocated memory is still 71.3MB. Free memory was 22.8MB in the beginning and 21.2MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 03:13:05,979 INFO L158 Benchmark]: Boogie Preprocessor took 26.96ms. Allocated memory is still 71.3MB. Free memory was 21.2MB in the beginning and 20.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:13:05,979 INFO L158 Benchmark]: RCFGBuilder took 411.78ms. Allocated memory is still 71.3MB. Free memory was 20.0MB in the beginning and 34.0MB in the end (delta: -13.9MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. [2025-03-15 03:13:05,980 INFO L158 Benchmark]: TraceAbstraction took 5005.39ms. Allocated memory was 71.3MB in the beginning and 134.2MB in the end (delta: 62.9MB). Free memory was 33.0MB in the beginning and 71.3MB in the end (delta: -38.3MB). Peak memory consumption was 61.7MB. Max. memory is 8.0GB. [2025-03-15 03:13:05,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.45ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 22.8MB in the end (delta: 19.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.93ms. Allocated memory is still 71.3MB. Free memory was 22.8MB in the beginning and 21.2MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.96ms. Allocated memory is still 71.3MB. Free memory was 21.2MB in the beginning and 20.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 411.78ms. Allocated memory is still 71.3MB. Free memory was 20.0MB in the beginning and 34.0MB in the end (delta: -13.9MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5005.39ms. Allocated memory was 71.3MB in the beginning and 134.2MB in the end (delta: 62.9MB). Free memory was 33.0MB in the beginning and 71.3MB in the end (delta: -38.3MB). Peak memory consumption was 61.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: 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, 135 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 499 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 499 mSDsluCounter, 197 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 602 IncrementalHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 62 mSDtfsCounter, 602 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 475 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1772occurred in iteration=9, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 687 NumberOfCodeBlocks, 639 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 812 ConstructedInterpolants, 0 QuantifiedInterpolants, 1634 SizeOfPredicates, 19 NumberOfNonLiveVariables, 443 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 126/180 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 03:13:05,992 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...