/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/unroll-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 03:10:20,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 03:10:20,794 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 03:10:20,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 03:10:20,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 03:10:20,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 03:10:20,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 03:10:20,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 03:10:20,836 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 03:10:20,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 03:10:20,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 03:10:20,838 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 03:10:20,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 03:10:20,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 03:10:20,838 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 03:10:20,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 03:10:20,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:10:20,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 03:10:20,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 03:10:20,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 03:10:20,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 03:10:20,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 03:10:20,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 03:10:20,839 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 03:10:21,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 03:10:21,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 03:10:21,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 03:10:21,138 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 03:10:21,139 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 03:10:21,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2025-03-15 03:10:22,465 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd0fa335/67d0fd7ad7ea4d30bcb8130ef068a4d7/FLAGa25783445 [2025-03-15 03:10:22,673 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 03:10:22,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2025-03-15 03:10:22,681 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd0fa335/67d0fd7ad7ea4d30bcb8130ef068a4d7/FLAGa25783445 [2025-03-15 03:10:23,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd0fa335/67d0fd7ad7ea4d30bcb8130ef068a4d7 [2025-03-15 03:10:23,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 03:10:23,043 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 03:10:23,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 03:10:23,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 03:10:23,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 03:10:23,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7552bc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23, skipping insertion in model container [2025-03-15 03:10:23,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 03:10:23,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:10:23,226 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 03:10:23,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:10:23,262 INFO L204 MainTranslator]: Completed translation [2025-03-15 03:10:23,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23 WrapperNode [2025-03-15 03:10:23,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 03:10:23,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 03:10:23,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 03:10:23,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 03:10:23,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,297 INFO L138 Inliner]: procedures = 23, calls = 27, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 142 [2025-03-15 03:10:23,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 03:10:23,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 03:10:23,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 03:10:23,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 03:10:23,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,319 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 03:10:23,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 03:10:23,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 03:10:23,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 03:10:23,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (1/1) ... [2025-03-15 03:10:23,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:10:23,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:23,373 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 03:10:23,376 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 03:10:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 03:10:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 03:10:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 03:10:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 03:10:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 03:10:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 03:10:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 03:10:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-15 03:10:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 03:10:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 03:10:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 03:10:23,399 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 03:10:23,482 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 03:10:23,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 03:10:23,807 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 03:10:23,807 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 03:10:23,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 03:10:23,818 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 03:10:23,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:10:23 BoogieIcfgContainer [2025-03-15 03:10:23,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 03:10:23,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 03:10:23,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 03:10:23,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 03:10:23,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:10:23" (1/3) ... [2025-03-15 03:10:23,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f58004f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:10:23, skipping insertion in model container [2025-03-15 03:10:23,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:23" (2/3) ... [2025-03-15 03:10:23,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f58004f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:10:23, skipping insertion in model container [2025-03-15 03:10:23,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:10:23" (3/3) ... [2025-03-15 03:10:23,826 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2025-03-15 03:10:23,837 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 03:10:23,838 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-4.wvr.c that has 3 procedures, 184 locations, 1 initial locations, 3 loop locations, and 2 error locations. [2025-03-15 03:10:23,838 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 03:10:23,922 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 03:10:23,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 03:10:23,976 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;@7b2c077d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 03:10:23,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-15 03:10:24,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 03:10:24,018 INFO L124 PetriNetUnfolderBase]: 3/66 cut-off events. [2025-03-15 03:10:24,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 03:10:24,020 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:24,021 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] [2025-03-15 03:10:24,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-15 03:10:24,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:24,026 INFO L85 PathProgramCache]: Analyzing trace with hash 391801852, now seen corresponding path program 1 times [2025-03-15 03:10:24,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:24,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091926334] [2025-03-15 03:10:24,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:24,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:24,348 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 03:10:24,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:24,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091926334] [2025-03-15 03:10:24,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091926334] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:24,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:24,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:10:24,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252347909] [2025-03-15 03:10:24,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:24,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:10:24,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:24,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:10:24,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:10:24,384 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 196 [2025-03-15 03:10:24,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 196 transitions, 406 flow. Second operand has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 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 03:10:24,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:24,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 196 [2025-03-15 03:10:24,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:24,531 INFO L124 PetriNetUnfolderBase]: 4/189 cut-off events. [2025-03-15 03:10:24,531 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-15 03:10:24,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 189 events. 4/189 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 174 event pairs, 0 based on Foata normal form. 12/185 useless extension candidates. Maximal degree in co-relation 144. Up to 20 conditions per place. [2025-03-15 03:10:24,543 INFO L140 encePairwiseOnDemand]: 178/196 looper letters, 14 selfloop transitions, 4 changer transitions 119/186 dead transitions. [2025-03-15 03:10:24,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 186 transitions, 438 flow [2025-03-15 03:10:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:10:24,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:10:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 875 transitions. [2025-03-15 03:10:24,560 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2025-03-15 03:10:24,563 INFO L298 CegarLoopForPetriNet]: 190 programPoint places, -5 predicate places. [2025-03-15 03:10:24,563 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 186 transitions, 438 flow [2025-03-15 03:10:24,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 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 03:10:24,564 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:24,565 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:24,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 03:10:24,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-15 03:10:24,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:24,566 INFO L85 PathProgramCache]: Analyzing trace with hash -585583650, now seen corresponding path program 1 times [2025-03-15 03:10:24,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:24,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837450250] [2025-03-15 03:10:24,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:24,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:10:24,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:24,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837450250] [2025-03-15 03:10:24,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837450250] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:10:24,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243799989] [2025-03-15 03:10:24,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:24,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:24,746 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 03:10:24,747 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 03:10:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:24,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 03:10:24,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:10:24,918 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:10:24,918 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 03:10:24,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243799989] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:24,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 03:10:24,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 03:10:24,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535482348] [2025-03-15 03:10:24,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:24,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:24,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:24,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:24,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 03:10:24,924 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 196 [2025-03-15 03:10:24,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 186 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 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 03:10:24,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:24,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 196 [2025-03-15 03:10:24,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:25,065 INFO L124 PetriNetUnfolderBase]: 4/188 cut-off events. [2025-03-15 03:10:25,065 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-15 03:10:25,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 188 events. 4/188 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 172 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 165. Up to 19 conditions per place. [2025-03-15 03:10:25,067 INFO L140 encePairwiseOnDemand]: 190/196 looper letters, 11 selfloop transitions, 6 changer transitions 119/185 dead transitions. [2025-03-15 03:10:25,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 185 transitions, 486 flow [2025-03-15 03:10:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:10:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:10:25,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1196 transitions. [2025-03-15 03:10:25,070 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8717201166180758 [2025-03-15 03:10:25,070 INFO L298 CegarLoopForPetriNet]: 190 programPoint places, 0 predicate places. [2025-03-15 03:10:25,070 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 486 flow [2025-03-15 03:10:25,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 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 03:10:25,071 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:25,071 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:25,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-15 03:10:25,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:25,275 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-15 03:10:25,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:25,275 INFO L85 PathProgramCache]: Analyzing trace with hash -973223672, now seen corresponding path program 1 times [2025-03-15 03:10:25,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:25,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37984743] [2025-03-15 03:10:25,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:25,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:10:25,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:25,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37984743] [2025-03-15 03:10:25,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37984743] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:10:25,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441403394] [2025-03-15 03:10:25,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:25,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:25,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:25,409 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 03:10:25,414 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 03:10:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:25,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 03:10:25,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:10:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:10:25,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:10:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:10:25,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441403394] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:10:25,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:10:25,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 03:10:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180068443] [2025-03-15 03:10:25,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:10:25,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 03:10:25,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:25,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 03:10:25,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 03:10:25,663 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 196 [2025-03-15 03:10:25,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 486 flow. Second operand has 12 states, 12 states have (on average 169.83333333333334) internal successors, (2038), 12 states have internal predecessors, (2038), 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 03:10:25,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:25,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 196 [2025-03-15 03:10:25,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:25,894 INFO L124 PetriNetUnfolderBase]: 7/223 cut-off events. [2025-03-15 03:10:25,895 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2025-03-15 03:10:25,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 223 events. 7/223 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 326 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 301. Up to 45 conditions per place. [2025-03-15 03:10:25,899 INFO L140 encePairwiseOnDemand]: 189/196 looper letters, 23 selfloop transitions, 14 changer transitions 125/211 dead transitions. [2025-03-15 03:10:25,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 211 transitions, 746 flow [2025-03-15 03:10:25,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 03:10:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 03:10:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2393 transitions. [2025-03-15 03:10:25,907 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8720845481049563 [2025-03-15 03:10:25,908 INFO L298 CegarLoopForPetriNet]: 190 programPoint places, 13 predicate places. [2025-03-15 03:10:25,908 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 211 transitions, 746 flow [2025-03-15 03:10:25,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 169.83333333333334) internal successors, (2038), 12 states have internal predecessors, (2038), 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 03:10:25,909 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:25,909 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 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] [2025-03-15 03:10:25,919 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 03:10:26,110 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,SelfDestructingSolverStorable2 [2025-03-15 03:10:26,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-15 03:10:26,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash 30749986, now seen corresponding path program 2 times [2025-03-15 03:10:26,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:26,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932137184] [2025-03-15 03:10:26,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:10:26,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:26,140 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:10:26,140 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:10:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 03:10:26,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:26,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932137184] [2025-03-15 03:10:26,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932137184] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:10:26,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490383821] [2025-03-15 03:10:26,232 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:10:26,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:26,234 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 03:10:26,235 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 03:10:26,299 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:10:26,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:10:26,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 03:10:26,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:10:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 03:10:26,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:10:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 03:10:26,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490383821] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:10:26,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:10:26,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-15 03:10:26,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560577446] [2025-03-15 03:10:26,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:10:26,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 03:10:26,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:26,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 03:10:26,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-15 03:10:26,544 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 196 [2025-03-15 03:10:26,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 211 transitions, 746 flow. Second operand has 8 states, 8 states have (on average 151.25) internal successors, (1210), 8 states have internal predecessors, (1210), 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 03:10:26,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:26,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 196 [2025-03-15 03:10:26,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:26,734 INFO L124 PetriNetUnfolderBase]: 26/330 cut-off events. [2025-03-15 03:10:26,734 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2025-03-15 03:10:26,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 330 events. 26/330 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 847 event pairs, 9 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 359. Up to 54 conditions per place. [2025-03-15 03:10:26,738 INFO L140 encePairwiseOnDemand]: 182/196 looper letters, 0 selfloop transitions, 0 changer transitions 210/210 dead transitions. [2025-03-15 03:10:26,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 210 transitions, 876 flow [2025-03-15 03:10:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 03:10:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 03:10:26,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1370 transitions. [2025-03-15 03:10:26,741 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7766439909297053 [2025-03-15 03:10:26,743 INFO L298 CegarLoopForPetriNet]: 190 programPoint places, 20 predicate places. [2025-03-15 03:10:26,743 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 210 transitions, 876 flow [2025-03-15 03:10:26,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 151.25) internal successors, (1210), 8 states have internal predecessors, (1210), 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 03:10:26,750 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/unroll-4.wvr.c_petrified1_AllErrorsAtOnce [2025-03-15 03:10:26,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-15 03:10:26,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-15 03:10:26,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-15 03:10:26,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-15 03:10:26,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-15 03:10:26,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:26,979 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-03-15 03:10:26,983 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 03:10:26,983 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 03:10:26,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:10:26 BasicIcfg [2025-03-15 03:10:26,987 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 03:10:26,987 INFO L158 Benchmark]: Toolchain (without parser) took 3944.07ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 45.1MB in the beginning and 32.9MB in the end (delta: 12.2MB). Peak memory consumption was 26.4MB. Max. memory is 8.0GB. [2025-03-15 03:10:26,987 INFO L158 Benchmark]: CDTParser took 1.91ms. Allocated memory is still 71.3MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:10:26,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.47ms. Allocated memory is still 71.3MB. Free memory was 45.0MB in the beginning and 33.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 03:10:26,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 71.3MB. Free memory was 33.1MB in the beginning and 31.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 03:10:26,988 INFO L158 Benchmark]: Boogie Preprocessor took 31.65ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 30.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:10:26,988 INFO L158 Benchmark]: RCFGBuilder took 485.21ms. Allocated memory is still 71.3MB. Free memory was 30.1MB in the beginning and 40.5MB in the end (delta: -10.3MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2025-03-15 03:10:26,989 INFO L158 Benchmark]: TraceAbstraction took 3166.58ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 32.9MB in the end (delta: 6.3MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2025-03-15 03:10:26,990 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.91ms. Allocated memory is still 71.3MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.47ms. Allocated memory is still 71.3MB. Free memory was 45.0MB in the beginning and 33.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 71.3MB. Free memory was 33.1MB in the beginning and 31.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.65ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 30.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 485.21ms. Allocated memory is still 71.3MB. Free memory was 30.1MB in the beginning and 40.5MB in the end (delta: -10.3MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * TraceAbstraction took 3166.58ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 32.9MB in the end (delta: 6.3MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: 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, 263 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 31 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 421 GetRequests, 375 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred in iteration=4, InterpolantAutomatonStates: 35, 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, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 509 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 1308 SizeOfPredicates, 12 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 199/314 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 03:10:27,004 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...