/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/weaver/parallel-ticket-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:37:10,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:37:10,729 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 02:37:10,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:37:10,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:37:10,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:37:10,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:37:10,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:37:10,762 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:37:10,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:37:10,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:37:10,763 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:37:10,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:37:10,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:37:10,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:37:10,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:37:10,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:37:10,765 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 02:37:11,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:37:11,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:37:11,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:37:11,048 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:37:11,048 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:37:11,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2025-03-15 02:37:12,167 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a14e229/5cf0e0a9331141239f06ac44e714f9f8/FLAG4e3bd0afc [2025-03-15 02:37:12,359 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:37:12,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2025-03-15 02:37:12,366 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a14e229/5cf0e0a9331141239f06ac44e714f9f8/FLAG4e3bd0afc [2025-03-15 02:37:12,745 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a14e229/5cf0e0a9331141239f06ac44e714f9f8 [2025-03-15 02:37:12,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:37:12,748 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:37:12,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:37:12,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:37:12,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:37:12,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3686abeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12, skipping insertion in model container [2025-03-15 02:37:12,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:37:12,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:37:12,879 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:37:12,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:37:12,906 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:37:12,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12 WrapperNode [2025-03-15 02:37:12,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:37:12,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:37:12,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:37:12,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:37:12,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,940 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2025-03-15 02:37:12,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:37:12,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:37:12,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:37:12,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:37:12,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,954 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:37:12,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:37:12,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:37:12,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:37:12,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (1/1) ... [2025-03-15 02:37:12,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:37:12,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:37:12,997 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 02:37:13,002 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 02:37:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:37:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 02:37:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 02:37:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 02:37:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 02:37:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:37:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:37:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:37:13,019 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 02:37:13,090 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:37:13,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:37:13,274 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:37:13,274 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:37:13,317 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:37:13,318 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:37:13,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:37:13 BoogieIcfgContainer [2025-03-15 02:37:13,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:37:13,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:37:13,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:37:13,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:37:13,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:37:12" (1/3) ... [2025-03-15 02:37:13,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72caf09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:37:13, skipping insertion in model container [2025-03-15 02:37:13,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:37:12" (2/3) ... [2025-03-15 02:37:13,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72caf09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:37:13, skipping insertion in model container [2025-03-15 02:37:13,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:37:13" (3/3) ... [2025-03-15 02:37:13,328 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2025-03-15 02:37:13,339 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:37:13,341 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-2.wvr.c that has 3 procedures, 121 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-15 02:37:13,341 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:37:13,400 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 02:37:13,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:37:13,440 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;@37cd9834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:37:13,440 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-15 02:37:13,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:37:13,474 INFO L124 PetriNetUnfolderBase]: 1/54 cut-off events. [2025-03-15 02:37:13,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:37:13,480 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:13,480 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] [2025-03-15 02:37:13,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 02:37:13,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1439005634, now seen corresponding path program 1 times [2025-03-15 02:37:13,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992259259] [2025-03-15 02:37:13,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:37:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:37:13,756 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 02:37:13,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:13,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992259259] [2025-03-15 02:37:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992259259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:37:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:37:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:37:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916333723] [2025-03-15 02:37:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:37:13,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:37:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:13,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:37:13,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:37:13,785 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 125 [2025-03-15 02:37:13,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 125 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 02:37:13,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:13,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 125 [2025-03-15 02:37:13,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:13,922 INFO L124 PetriNetUnfolderBase]: 36/264 cut-off events. [2025-03-15 02:37:13,922 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-03-15 02:37:13,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 264 events. 36/264 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1004 event pairs, 35 based on Foata normal form. 15/222 useless extension candidates. Maximal degree in co-relation 276. Up to 89 conditions per place. [2025-03-15 02:37:13,929 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 17 selfloop transitions, 3 changer transitions 10/110 dead transitions. [2025-03-15 02:37:13,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 110 transitions, 274 flow [2025-03-15 02:37:13,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:37:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:37:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2025-03-15 02:37:13,940 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.824 [2025-03-15 02:37:13,944 INFO L298 CegarLoopForPetriNet]: 127 programPoint places, -8 predicate places. [2025-03-15 02:37:13,944 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 110 transitions, 274 flow [2025-03-15 02:37:13,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 02:37:13,944 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:13,944 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] [2025-03-15 02:37:13,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:37:13,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 02:37:13,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:13,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1439005633, now seen corresponding path program 1 times [2025-03-15 02:37:13,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:13,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618656928] [2025-03-15 02:37:13,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:37:13,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:37:14,106 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 02:37:14,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:14,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618656928] [2025-03-15 02:37:14,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618656928] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:37:14,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:37:14,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:37:14,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353691719] [2025-03-15 02:37:14,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:37:14,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:37:14,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:14,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:37:14,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:37:14,109 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 125 [2025-03-15 02:37:14,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 110 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 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 02:37:14,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:14,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 125 [2025-03-15 02:37:14,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:14,234 INFO L124 PetriNetUnfolderBase]: 37/259 cut-off events. [2025-03-15 02:37:14,235 INFO L125 PetriNetUnfolderBase]: For 58/74 co-relation queries the response was YES. [2025-03-15 02:37:14,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 259 events. 37/259 cut-off events. For 58/74 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1030 event pairs, 26 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 309. Up to 82 conditions per place. [2025-03-15 02:37:14,236 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 17 selfloop transitions, 7 changer transitions 10/113 dead transitions. [2025-03-15 02:37:14,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 113 transitions, 355 flow [2025-03-15 02:37:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:37:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:37:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 563 transitions. [2025-03-15 02:37:14,239 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7506666666666667 [2025-03-15 02:37:14,239 INFO L298 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2025-03-15 02:37:14,239 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 113 transitions, 355 flow [2025-03-15 02:37:14,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 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 02:37:14,239 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:14,239 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] [2025-03-15 02:37:14,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 02:37:14,240 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 02:37:14,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -324025203, now seen corresponding path program 1 times [2025-03-15 02:37:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:14,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988601609] [2025-03-15 02:37:14,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:37:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:37:14,373 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 02:37:14,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:14,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988601609] [2025-03-15 02:37:14,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988601609] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:37:14,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:37:14,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:37:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757182946] [2025-03-15 02:37:14,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:37:14,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:37:14,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:14,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:37:14,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:37:14,375 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 125 [2025-03-15 02:37:14,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 113 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:37:14,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:14,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 125 [2025-03-15 02:37:14,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:14,495 INFO L124 PetriNetUnfolderBase]: 26/195 cut-off events. [2025-03-15 02:37:14,495 INFO L125 PetriNetUnfolderBase]: For 112/128 co-relation queries the response was YES. [2025-03-15 02:37:14,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 195 events. 26/195 cut-off events. For 112/128 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 578 event pairs, 15 based on Foata normal form. 2/165 useless extension candidates. Maximal degree in co-relation 283. Up to 66 conditions per place. [2025-03-15 02:37:14,496 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 20 selfloop transitions, 9 changer transitions 10/118 dead transitions. [2025-03-15 02:37:14,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 118 transitions, 464 flow [2025-03-15 02:37:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:37:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:37:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 656 transitions. [2025-03-15 02:37:14,499 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7497142857142857 [2025-03-15 02:37:14,500 INFO L298 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2025-03-15 02:37:14,500 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 118 transitions, 464 flow [2025-03-15 02:37:14,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:37:14,501 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:14,501 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] [2025-03-15 02:37:14,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 02:37:14,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 02:37:14,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:14,502 INFO L85 PathProgramCache]: Analyzing trace with hash 785258651, now seen corresponding path program 1 times [2025-03-15 02:37:14,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:14,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29774273] [2025-03-15 02:37:14,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:37:14,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:37:14,570 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 02:37:14,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:14,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29774273] [2025-03-15 02:37:14,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29774273] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:37:14,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:37:14,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:37:14,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138318594] [2025-03-15 02:37:14,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:37:14,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:37:14,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:14,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:37:14,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:37:14,571 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2025-03-15 02:37:14,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 118 transitions, 464 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 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 02:37:14,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:14,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2025-03-15 02:37:14,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:14,639 INFO L124 PetriNetUnfolderBase]: 29/256 cut-off events. [2025-03-15 02:37:14,640 INFO L125 PetriNetUnfolderBase]: For 221/233 co-relation queries the response was YES. [2025-03-15 02:37:14,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 256 events. 29/256 cut-off events. For 221/233 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 787 event pairs, 7 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 346. Up to 65 conditions per place. [2025-03-15 02:37:14,641 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 23 selfloop transitions, 3 changer transitions 10/114 dead transitions. [2025-03-15 02:37:14,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 114 transitions, 486 flow [2025-03-15 02:37:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:37:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:37:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2025-03-15 02:37:14,644 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.794 [2025-03-15 02:37:14,644 INFO L298 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2025-03-15 02:37:14,644 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 114 transitions, 486 flow [2025-03-15 02:37:14,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 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 02:37:14,645 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:14,645 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] [2025-03-15 02:37:14,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 02:37:14,645 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 02:37:14,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:14,645 INFO L85 PathProgramCache]: Analyzing trace with hash 785258652, now seen corresponding path program 1 times [2025-03-15 02:37:14,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:14,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312460596] [2025-03-15 02:37:14,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:37:14,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:37:14,740 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 02:37:14,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:14,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312460596] [2025-03-15 02:37:14,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312460596] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:37:14,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:37:14,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:37:14,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888803826] [2025-03-15 02:37:14,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:37:14,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:37:14,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:14,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:37:14,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:37:14,742 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 125 [2025-03-15 02:37:14,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 114 transitions, 486 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 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 02:37:14,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:14,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 125 [2025-03-15 02:37:14,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:14,826 INFO L124 PetriNetUnfolderBase]: 19/191 cut-off events. [2025-03-15 02:37:14,826 INFO L125 PetriNetUnfolderBase]: For 280/319 co-relation queries the response was YES. [2025-03-15 02:37:14,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 191 events. 19/191 cut-off events. For 280/319 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 469 event pairs, 4 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 265. Up to 49 conditions per place. [2025-03-15 02:37:14,827 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 21 selfloop transitions, 9 changer transitions 12/119 dead transitions. [2025-03-15 02:37:14,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 119 transitions, 609 flow [2025-03-15 02:37:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:37:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:37:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2025-03-15 02:37:14,830 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7373333333333333 [2025-03-15 02:37:14,830 INFO L298 CegarLoopForPetriNet]: 127 programPoint places, 7 predicate places. [2025-03-15 02:37:14,830 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 119 transitions, 609 flow [2025-03-15 02:37:14,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 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 02:37:14,830 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:14,831 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] [2025-03-15 02:37:14,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:37:14,831 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 02:37:14,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:14,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2019641071, now seen corresponding path program 1 times [2025-03-15 02:37:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:14,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497585319] [2025-03-15 02:37:14,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:37:14,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:37:14,950 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 02:37:14,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:14,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497585319] [2025-03-15 02:37:14,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497585319] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:37:14,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:37:14,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:37:14,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919457748] [2025-03-15 02:37:14,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:37:14,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:37:14,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:14,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:37:14,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:37:14,953 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 125 [2025-03-15 02:37:14,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 119 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 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 02:37:14,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:14,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 125 [2025-03-15 02:37:14,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:15,022 INFO L124 PetriNetUnfolderBase]: 17/190 cut-off events. [2025-03-15 02:37:15,022 INFO L125 PetriNetUnfolderBase]: For 402/436 co-relation queries the response was YES. [2025-03-15 02:37:15,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 190 events. 17/190 cut-off events. For 402/436 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 464 event pairs, 3 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 290. Up to 45 conditions per place. [2025-03-15 02:37:15,024 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2025-03-15 02:37:15,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 118 transitions, 680 flow [2025-03-15 02:37:15,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:37:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:37:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 638 transitions. [2025-03-15 02:37:15,026 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7291428571428571 [2025-03-15 02:37:15,027 INFO L298 CegarLoopForPetriNet]: 127 programPoint places, 11 predicate places. [2025-03-15 02:37:15,027 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 118 transitions, 680 flow [2025-03-15 02:37:15,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 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 02:37:15,033 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-ticket-2.wvr.c_petrified1_AllErrorsAtOnce [2025-03-15 02:37:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-03-15 02:37:15,051 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-03-15 02:37:15,051 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-15 02:37:15,051 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-15 02:37:15,051 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-15 02:37:15,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-15 02:37:15,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 02:37:15,053 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-15 02:37:15,057 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 02:37:15,058 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 02:37:15,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:37:15 BasicIcfg [2025-03-15 02:37:15,063 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 02:37:15,064 INFO L158 Benchmark]: Toolchain (without parser) took 2315.73ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 44.2MB in the beginning and 32.9MB in the end (delta: 11.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2025-03-15 02:37:15,064 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 71.3MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:37:15,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.79ms. Allocated memory is still 71.3MB. Free memory was 44.0MB in the beginning and 32.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-03-15 02:37:15,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.11ms. Allocated memory is still 71.3MB. Free memory was 32.9MB in the beginning and 31.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:37:15,064 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 30.5MB in the end (delta: 948.8kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 02:37:15,066 INFO L158 Benchmark]: RCFGBuilder took 356.98ms. Allocated memory is still 71.3MB. Free memory was 30.5MB in the beginning and 40.7MB in the end (delta: -10.3MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2025-03-15 02:37:15,066 INFO L158 Benchmark]: TraceAbstraction took 1741.45ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 32.9MB in the end (delta: 6.6MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. [2025-03-15 02:37:15,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 71.3MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 157.79ms. Allocated memory is still 71.3MB. Free memory was 44.0MB in the beginning and 32.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.11ms. Allocated memory is still 71.3MB. Free memory was 32.9MB in the beginning and 31.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 30.5MB in the end (delta: 948.8kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 356.98ms. Allocated memory is still 71.3MB. Free memory was 30.5MB in the beginning and 40.7MB in the end (delta: -10.3MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1741.45ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 32.9MB in the end (delta: 6.6MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: 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, 167 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: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 62 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=680occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 833 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, 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 02:37:15,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...