/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-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 03:10:16,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 03:10:16,942 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 03:10:16,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 03:10:16,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 03:10:16,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 03:10:16,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 03:10:16,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 03:10:16,972 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 03:10:16,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 03:10:16,973 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 03:10:16,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:10:16,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 03:10:16,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 03:10:16,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 03:10:16,975 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 03:10:16,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 03:10:16,975 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 03:10:17,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 03:10:17,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 03:10:17,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 03:10:17,281 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 03:10:17,282 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 03:10:17,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c [2025-03-15 03:10:18,683 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/535bee1be/7c88250006d54d3ebaa3a73b79ac5b1a/FLAG0efc3e264 [2025-03-15 03:10:18,885 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 03:10:18,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c [2025-03-15 03:10:18,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/535bee1be/7c88250006d54d3ebaa3a73b79ac5b1a/FLAG0efc3e264 [2025-03-15 03:10:18,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/535bee1be/7c88250006d54d3ebaa3a73b79ac5b1a [2025-03-15 03:10:18,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 03:10:18,908 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 03:10:18,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 03:10:18,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 03:10:18,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 03:10:18,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:10:18" (1/1) ... [2025-03-15 03:10:18,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c8e71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:18, skipping insertion in model container [2025-03-15 03:10:18,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:10:18" (1/1) ... [2025-03-15 03:10:18,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 03:10:19,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:10:19,091 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 03:10:19,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:10:19,117 INFO L204 MainTranslator]: Completed translation [2025-03-15 03:10:19,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19 WrapperNode [2025-03-15 03:10:19,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 03:10:19,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 03:10:19,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 03:10:19,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 03:10:19,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,147 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 132 [2025-03-15 03:10:19,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 03:10:19,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 03:10:19,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 03:10:19,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 03:10:19,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,162 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 03:10:19,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 03:10:19,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 03:10:19,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 03:10:19,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (1/1) ... [2025-03-15 03:10:19,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:10:19,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:19,205 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 03:10:19,213 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 03:10:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 03:10:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 03:10:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 03:10:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 03:10:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 03:10:19,232 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 03:10:19,305 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 03:10:19,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 03:10:19,541 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 03:10:19,542 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 03:10:19,555 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 03:10:19,555 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 03:10:19,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:10:19 BoogieIcfgContainer [2025-03-15 03:10:19,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 03:10:19,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 03:10:19,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 03:10:19,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 03:10:19,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:10:18" (1/3) ... [2025-03-15 03:10:19,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c92f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:10:19, skipping insertion in model container [2025-03-15 03:10:19,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:19" (2/3) ... [2025-03-15 03:10:19,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c92f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:10:19, skipping insertion in model container [2025-03-15 03:10:19,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:10:19" (3/3) ... [2025-03-15 03:10:19,566 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2025-03-15 03:10:19,579 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 03:10:19,581 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-3.wvr.c that has 3 procedures, 171 locations, 1 initial locations, 3 loop locations, and 2 error locations. [2025-03-15 03:10:19,581 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 03:10:19,654 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 03:10:19,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 03:10:19,707 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;@1dbb24c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 03:10:19,707 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-15 03:10:19,758 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 03:10:19,758 INFO L124 PetriNetUnfolderBase]: 3/67 cut-off events. [2025-03-15 03:10:19,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 03:10:19,762 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:19,762 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:19,763 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 03:10:19,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -905203436, now seen corresponding path program 1 times [2025-03-15 03:10:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:19,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74174580] [2025-03-15 03:10:19,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:20,117 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 03:10:20,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:20,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74174580] [2025-03-15 03:10:20,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74174580] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:20,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:20,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:10:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033821486] [2025-03-15 03:10:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:20,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:10:20,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:20,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:10:20,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:10:20,154 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 182 [2025-03-15 03:10:20,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 182 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 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 03:10:20,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:20,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 182 [2025-03-15 03:10:20,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:20,300 INFO L124 PetriNetUnfolderBase]: 4/176 cut-off events. [2025-03-15 03:10:20,300 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-15 03:10:20,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 176 events. 4/176 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 177 event pairs, 0 based on Foata normal form. 11/172 useless extension candidates. Maximal degree in co-relation 144. Up to 20 conditions per place. [2025-03-15 03:10:20,311 INFO L140 encePairwiseOnDemand]: 165/182 looper letters, 14 selfloop transitions, 4 changer transitions 106/173 dead transitions. [2025-03-15 03:10:20,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 173 transitions, 412 flow [2025-03-15 03:10:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:10:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:10:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 809 transitions. [2025-03-15 03:10:20,329 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.889010989010989 [2025-03-15 03:10:20,333 INFO L298 CegarLoopForPetriNet]: 177 programPoint places, -5 predicate places. [2025-03-15 03:10:20,334 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 173 transitions, 412 flow [2025-03-15 03:10:20,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 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 03:10:20,335 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:20,335 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 03:10:20,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 03:10:20,336 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 03:10:20,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1790470359, now seen corresponding path program 1 times [2025-03-15 03:10:20,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:20,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489270304] [2025-03-15 03:10:20,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:20,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:20,526 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 03:10:20,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489270304] [2025-03-15 03:10:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489270304] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:10:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606007881] [2025-03-15 03:10:20,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:20,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:20,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:20,532 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 03:10:20,534 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 03:10:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:20,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 03:10:20,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:10:20,708 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 03:10:20,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 03:10:20,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606007881] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:20,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 03:10:20,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 03:10:20,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532273255] [2025-03-15 03:10:20,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:20,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:20,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:20,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:20,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 03:10:20,712 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 182 [2025-03-15 03:10:20,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 173 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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 03:10:20,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:20,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 182 [2025-03-15 03:10:20,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:20,866 INFO L124 PetriNetUnfolderBase]: 4/175 cut-off events. [2025-03-15 03:10:20,866 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-15 03:10:20,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 175 events. 4/175 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 174 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 165. Up to 19 conditions per place. [2025-03-15 03:10:20,869 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 11 selfloop transitions, 6 changer transitions 106/172 dead transitions. [2025-03-15 03:10:20,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 172 transitions, 460 flow [2025-03-15 03:10:20,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:10:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:10:20,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1105 transitions. [2025-03-15 03:10:20,873 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8673469387755102 [2025-03-15 03:10:20,875 INFO L298 CegarLoopForPetriNet]: 177 programPoint places, 0 predicate places. [2025-03-15 03:10:20,875 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 172 transitions, 460 flow [2025-03-15 03:10:20,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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 03:10:20,876 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:20,876 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 03:10:20,885 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 03:10:21,081 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 03:10:21,081 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 03:10:21,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -329993449, now seen corresponding path program 1 times [2025-03-15 03:10:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585596720] [2025-03-15 03:10:21,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:21,225 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 03:10:21,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:21,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585596720] [2025-03-15 03:10:21,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585596720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:10:21,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046755959] [2025-03-15 03:10:21,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:21,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:21,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:21,229 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 03:10:21,231 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 03:10:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:21,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 03:10:21,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:10:21,347 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 03:10:21,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:10:21,423 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 03:10:21,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046755959] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:10:21,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:10:21,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 03:10:21,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560789859] [2025-03-15 03:10:21,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:10:21,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 03:10:21,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:21,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 03:10:21,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 03:10:21,428 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 182 [2025-03-15 03:10:21,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 172 transitions, 460 flow. Second operand has 12 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 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 03:10:21,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:21,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 182 [2025-03-15 03:10:21,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:21,649 INFO L124 PetriNetUnfolderBase]: 7/210 cut-off events. [2025-03-15 03:10:21,649 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2025-03-15 03:10:21,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 210 events. 7/210 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 322 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 301. Up to 45 conditions per place. [2025-03-15 03:10:21,652 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 23 selfloop transitions, 14 changer transitions 112/198 dead transitions. [2025-03-15 03:10:21,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 198 transitions, 720 flow [2025-03-15 03:10:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 03:10:21,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 03:10:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2211 transitions. [2025-03-15 03:10:21,660 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8677394034536892 [2025-03-15 03:10:21,661 INFO L298 CegarLoopForPetriNet]: 177 programPoint places, 13 predicate places. [2025-03-15 03:10:21,662 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 198 transitions, 720 flow [2025-03-15 03:10:21,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 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 03:10:21,663 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:21,663 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 03:10:21,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-15 03:10:21,867 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 03:10:21,867 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 03:10:21,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:21,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1727630482, now seen corresponding path program 2 times [2025-03-15 03:10:21,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:21,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017578674] [2025-03-15 03:10:21,868 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:10:21,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:21,887 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:10:21,887 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:10:21,998 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 03:10:21,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:21,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017578674] [2025-03-15 03:10:21,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017578674] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:10:21,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578230185] [2025-03-15 03:10:21,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:10:21,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:10:21,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:22,002 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 03:10:22,004 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 03:10:22,063 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:10:22,063 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:10:22,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 03:10:22,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:10:22,189 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 03:10:22,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:10:22,339 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 03:10:22,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578230185] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:10:22,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:10:22,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-15 03:10:22,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949862615] [2025-03-15 03:10:22,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:10:22,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 03:10:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:22,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 03:10:22,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-15 03:10:22,342 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 182 [2025-03-15 03:10:22,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 198 transitions, 720 flow. Second operand has 8 states, 8 states have (on average 139.25) internal successors, (1114), 8 states have internal predecessors, (1114), 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 03:10:22,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:22,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 182 [2025-03-15 03:10:22,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:22,518 INFO L124 PetriNetUnfolderBase]: 22/295 cut-off events. [2025-03-15 03:10:22,519 INFO L125 PetriNetUnfolderBase]: For 229/229 co-relation queries the response was YES. [2025-03-15 03:10:22,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 295 events. 22/295 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 755 event pairs, 7 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 359. Up to 52 conditions per place. [2025-03-15 03:10:22,522 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 0 selfloop transitions, 0 changer transitions 197/197 dead transitions. [2025-03-15 03:10:22,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 848 flow [2025-03-15 03:10:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 03:10:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 03:10:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1261 transitions. [2025-03-15 03:10:22,526 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7698412698412699 [2025-03-15 03:10:22,527 INFO L298 CegarLoopForPetriNet]: 177 programPoint places, 20 predicate places. [2025-03-15 03:10:22,527 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 848 flow [2025-03-15 03:10:22,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 139.25) internal successors, (1114), 8 states have internal predecessors, (1114), 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 03:10:22,539 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/unroll-3.wvr.c_petrified1_AllErrorsAtOnce [2025-03-15 03:10:22,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-15 03:10:22,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-15 03:10:22,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-15 03:10:22,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-15 03:10:22,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-15 03:10:22,776 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 03:10:22,777 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-03-15 03:10:22,782 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 03:10:22,782 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 03:10:22,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:10:22 BasicIcfg [2025-03-15 03:10:22,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 03:10:22,787 INFO L158 Benchmark]: Toolchain (without parser) took 3879.23ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 44.5MB in the beginning and 40.4MB in the end (delta: 4.1MB). Peak memory consumption was 44.7MB. Max. memory is 8.0GB. [2025-03-15 03:10:22,787 INFO L158 Benchmark]: CDTParser took 1.38ms. Allocated memory is still 71.3MB. Free memory is still 32.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:10:22,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.41ms. Allocated memory is still 71.3MB. Free memory was 44.3MB in the beginning and 32.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 03:10:22,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.21ms. Allocated memory is still 71.3MB. Free memory was 32.6MB in the beginning and 31.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 03:10:22,788 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 71.3MB. Free memory was 31.0MB in the beginning and 29.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:10:22,788 INFO L158 Benchmark]: RCFGBuilder took 386.29ms. Allocated memory is still 71.3MB. Free memory was 29.8MB in the beginning and 40.6MB in the end (delta: -10.8MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2025-03-15 03:10:22,789 INFO L158 Benchmark]: TraceAbstraction took 3227.66ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.7MB in the beginning and 40.4MB in the end (delta: -718.5kB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2025-03-15 03:10:22,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38ms. Allocated memory is still 71.3MB. Free memory is still 32.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 209.41ms. Allocated memory is still 71.3MB. Free memory was 44.3MB in the beginning and 32.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.21ms. Allocated memory is still 71.3MB. Free memory was 32.6MB in the beginning and 31.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 71.3MB. Free memory was 31.0MB in the beginning and 29.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 386.29ms. Allocated memory is still 71.3MB. Free memory was 29.8MB in the beginning and 40.6MB in the end (delta: -10.8MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3227.66ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.7MB in the beginning and 40.4MB in the end (delta: -718.5kB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: 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, 237 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 31 mSDtfsCounter, 343 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=848occurred 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 03:10:22,808 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...