/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 -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6 [2024-11-15 21:31:41,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-15 21:31:41,398 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-15 21:31:41,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-15 21:31:41,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-15 21:31:41,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-15 21:31:41,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-15 21:31:41,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-15 21:31:41,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-15 21:31:41,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-15 21:31:41,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-15 21:31:41,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-15 21:31:41,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-15 21:31:41,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-15 21:31:41,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-15 21:31:41,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-15 21:31:41,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-15 21:31:41,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-15 21:31:41,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-15 21:31:41,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-15 21:31:41,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-15 21:31:41,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-15 21:31:41,654 INFO L274 PluginConnector]: CDTParser initialized [2024-11-15 21:31:41,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/triangular-1.i [2024-11-15 21:31:42,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-15 21:31:43,013 INFO L384 CDTParser]: Found 1 translation units. [2024-11-15 21:31:43,014 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/triangular-1.i [2024-11-15 21:31:43,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/15c9eef85/042bdedea34a4efd8e0adc12b8713d81/FLAGf4fd87ef0 [2024-11-15 21:31:43,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/15c9eef85/042bdedea34a4efd8e0adc12b8713d81 [2024-11-15 21:31:43,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-15 21:31:43,043 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-15 21:31:43,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-15 21:31:43,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-15 21:31:43,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-15 21:31:43,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483a5309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43, skipping insertion in model container [2024-11-15 21:31:43,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 21:31:43,245 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/triangular-1.i[30950,30963] [2024-11-15 21:31:43,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 21:31:43,254 INFO L200 MainTranslator]: Completed pre-run [2024-11-15 21:31:43,280 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/triangular-1.i[30950,30963] [2024-11-15 21:31:43,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 21:31:43,306 INFO L204 MainTranslator]: Completed translation [2024-11-15 21:31:43,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43 WrapperNode [2024-11-15 21:31:43,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-15 21:31:43,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-15 21:31:43,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-15 21:31:43,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-15 21:31:43,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,333 INFO L138 Inliner]: procedures = 168, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-15 21:31:43,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-15 21:31:43,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-15 21:31:43,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-15 21:31:43,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-15 21:31:43,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-15 21:31:43,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-15 21:31:43,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-15 21:31:43,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-15 21:31:43,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (1/1) ... [2024-11-15 21:31:43,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-15 21:31:43,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:43,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-15 21:31:43,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-15 21:31:43,396 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-15 21:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-15 21:31:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-15 21:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-15 21:31:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-15 21:31:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-15 21:31:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-15 21:31:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-15 21:31:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-15 21:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-15 21:31:43,398 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-15 21:31:43,501 INFO L238 CfgBuilder]: Building ICFG [2024-11-15 21:31:43,502 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-15 21:31:43,590 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-15 21:31:43,590 INFO L287 CfgBuilder]: Performing block encoding [2024-11-15 21:31:43,598 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-15 21:31:43,598 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-15 21:31:43,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:31:43 BoogieIcfgContainer [2024-11-15 21:31:43,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-15 21:31:43,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-15 21:31:43,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-15 21:31:43,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-15 21:31:43,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:31:43" (1/3) ... [2024-11-15 21:31:43,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2131d7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:31:43, skipping insertion in model container [2024-11-15 21:31:43,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:43" (2/3) ... [2024-11-15 21:31:43,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2131d7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:31:43, skipping insertion in model container [2024-11-15 21:31:43,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:31:43" (3/3) ... [2024-11-15 21:31:43,607 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-1.i [2024-11-15 21:31:43,617 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-15 21:31:43,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-1.i that has 3 procedures, 60 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-15 21:31:43,619 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-15 21:31:43,671 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-15 21:31:43,710 INFO L126 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-15 21:31:43,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-15 21:31:43,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:43,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-15 21:31:43,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-15 21:31:43,772 INFO L181 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-15 21:31:43,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-15 21:31:43,787 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4c12109b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-15 21:31:43,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-15 21:31:43,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:43,998 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:43,998 INFO L132 ounterexampleChecker]: Examining path program with hash -1659902554, occurence #1 [2024-11-15 21:31:43,998 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-15 21:31:43,998 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:44,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:44,002 INFO L85 PathProgramCache]: Analyzing trace with hash 515477847, now seen corresponding path program 1 times [2024-11-15 21:31:44,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:44,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006910347] [2024-11-15 21:31:44,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:44,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:44,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:44,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006910347] [2024-11-15 21:31:44,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006910347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 21:31:44,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 21:31:44,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 21:31:44,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899523767] [2024-11-15 21:31:44,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 21:31:44,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 21:31:44,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:44,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 21:31:44,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-15 21:31:44,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:44,436 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:44,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-11-15 21:31:44,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:44,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-15 21:31:44,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:44,571 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:44,571 INFO L132 ounterexampleChecker]: Examining path program with hash -1880576843, occurence #1 [2024-11-15 21:31:44,571 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-15 21:31:44,571 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:44,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1285008555, now seen corresponding path program 1 times [2024-11-15 21:31:44,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:44,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674082635] [2024-11-15 21:31:44,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:44,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:44,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674082635] [2024-11-15 21:31:44,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674082635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:44,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861980741] [2024-11-15 21:31:44,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:44,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:44,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:44,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 21:31:44,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-15 21:31:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:44,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-15 21:31:44,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:44,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 21:31:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861980741] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 21:31:45,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 21:31:45,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-15 21:31:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974675590] [2024-11-15 21:31:45,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 21:31:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-15 21:31:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:45,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-15 21:31:45,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-15 21:31:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:45,176 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:45,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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) [2024-11-15 21:31:45,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:45,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-15 21:31:45,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-15 21:31:45,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:45,545 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:45,545 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:45,545 INFO L132 ounterexampleChecker]: Examining path program with hash -1762948125, occurence #1 [2024-11-15 21:31:45,545 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-15 21:31:45,545 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:45,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:45,545 INFO L85 PathProgramCache]: Analyzing trace with hash 231594067, now seen corresponding path program 2 times [2024-11-15 21:31:45,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:45,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111385520] [2024-11-15 21:31:45,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:45,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:45,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:45,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111385520] [2024-11-15 21:31:45,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111385520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:45,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368999543] [2024-11-15 21:31:45,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-15 21:31:45,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:45,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:45,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 21:31:45,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-15 21:31:45,832 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-15 21:31:45,833 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 21:31:45,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-15 21:31:45,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:46,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 21:31:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:46,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368999543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 21:31:46,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 21:31:46,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 19 [2024-11-15 21:31:46,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722802381] [2024-11-15 21:31:46,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 21:31:46,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-15 21:31:46,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:46,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-15 21:31:46,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-15 21:31:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:46,261 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:46,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.052631578947368) internal successors, (134), 19 states have internal predecessors, (134), 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) [2024-11-15 21:31:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-15 21:31:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:46,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-15 21:31:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 21:31:46,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-15 21:31:46,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:46,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:46,709 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:46,712 INFO L132 ounterexampleChecker]: Examining path program with hash -1762948125, occurence #2 [2024-11-15 21:31:46,712 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-15 21:31:46,712 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-15 21:31:46,713 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,713 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-15 21:31:46,713 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,713 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-15 21:31:46,713 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,713 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-15 21:31:46,713 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,713 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-15 21:31:46,713 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,714 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-15 21:31:46,714 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,714 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-15 21:31:46,714 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,714 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-15 21:31:46,714 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,714 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-15 21:31:46,721 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-15 21:31:46,721 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-15 21:31:46,721 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,721 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-15 21:31:46,721 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,721 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-15 21:31:46,721 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-15 21:31:46,721 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-15 21:31:46,721 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,721 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-15 21:31:46,721 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:46,721 WARN L199 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-15 21:31:46,721 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:46,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1647788465, now seen corresponding path program 3 times [2024-11-15 21:31:46,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:46,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378680643] [2024-11-15 21:31:46,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:46,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 119 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:46,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:46,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378680643] [2024-11-15 21:31:46,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378680643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:46,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369450713] [2024-11-15 21:31:46,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-15 21:31:46,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:46,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 21:31:46,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-15 21:31:46,958 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-15 21:31:46,958 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 21:31:46,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-15 21:31:46,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:47,141 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 21:31:47,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369450713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 21:31:47,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-15 21:31:47,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-11-15 21:31:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122729521] [2024-11-15 21:31:47,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 21:31:47,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-15 21:31:47,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:47,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-15 21:31:47,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-15 21:31:47,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:47,143 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:47,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 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) [2024-11-15 21:31:47,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:47,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-15 21:31:47,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-15 21:31:47,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:47,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-15 21:31:47,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:47,875 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:47,875 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:47,875 INFO L132 ounterexampleChecker]: Examining path program with hash -1032192083, occurence #1 [2024-11-15 21:31:47,875 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-15 21:31:47,875 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:47,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:47,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2003981222, now seen corresponding path program 4 times [2024-11-15 21:31:47,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:47,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913310944] [2024-11-15 21:31:47,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:47,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:47,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:47,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913310944] [2024-11-15 21:31:47,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913310944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:47,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355310459] [2024-11-15 21:31:47,985 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-15 21:31:47,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:47,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:47,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 21:31:47,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-15 21:31:48,033 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-15 21:31:48,033 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 21:31:48,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-15 21:31:48,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:48,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 21:31:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:48,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355310459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 21:31:48,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 21:31:48,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-15 21:31:48,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491423742] [2024-11-15 21:31:48,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 21:31:48,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-15 21:31:48,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:48,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-15 21:31:48,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-15 21:31:48,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:48,189 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:48,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 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) [2024-11-15 21:31:48,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:48,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:48,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:48,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:48,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:48,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-15 21:31:48,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:48,798 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:48,798 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:48,798 INFO L132 ounterexampleChecker]: Examining path program with hash -1032192083, occurence #2 [2024-11-15 21:31:48,798 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,798 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-15 21:31:48,798 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-15 21:31:48,799 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-15 21:31:48,799 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-15 21:31:48,799 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-15 21:31:48,799 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-15 21:31:48,799 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-15 21:31:48,799 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:48,799 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-15 21:31:48,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:48,816 INFO L85 PathProgramCache]: Analyzing trace with hash -172902331, now seen corresponding path program 1 times [2024-11-15 21:31:48,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-15 21:31:48,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737660476] [2024-11-15 21:31:48,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:48,938 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-15 21:31:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737660476] [2024-11-15 21:31:48,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737660476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1818587216] [2024-11-15 21:31:48,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:48,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:48,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-15 21:31:48,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:49,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1818587216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:49,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 21:31:49,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2024-11-15 21:31:49,023 INFO L182 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-15 21:31:49,023 WARN L199 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-15 21:31:49,023 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:49,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:49,023 INFO L85 PathProgramCache]: Analyzing trace with hash -809321878, now seen corresponding path program 5 times [2024-11-15 21:31:49,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:49,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371528885] [2024-11-15 21:31:49,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:49,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:49,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:49,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371528885] [2024-11-15 21:31:49,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371528885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:49,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191830876] [2024-11-15 21:31:49,222 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-15 21:31:49,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:49,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 21:31:49,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-15 21:31:49,270 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-11-15 21:31:49,270 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 21:31:49,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-15 21:31:49,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:49,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 21:31:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:49,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191830876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 21:31:49,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 21:31:49,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 26 [2024-11-15 21:31:49,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708232131] [2024-11-15 21:31:49,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 21:31:49,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-15 21:31:49,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:49,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-15 21:31:49,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2024-11-15 21:31:49,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:49,530 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:49,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 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) [2024-11-15 21:31:49,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:49,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:49,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:49,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:49,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:49,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-15 21:31:50,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-15 21:31:50,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-15 21:31:50,335 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:50,335 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:50,335 INFO L132 ounterexampleChecker]: Examining path program with hash -1032192083, occurence #3 [2024-11-15 21:31:50,335 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-15 21:31:50,335 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-15 21:31:50,336 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-15 21:31:50,336 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-15 21:31:50,336 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-15 21:31:50,337 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,337 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-15 21:31:50,337 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,337 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-15 21:31:50,337 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-15 21:31:50,337 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-15 21:31:50,337 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-15 21:31:50,337 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2024-11-15 21:31:50,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -596316810, now seen corresponding path program 1 times [2024-11-15 21:31:50,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-15 21:31:50,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899256466] [2024-11-15 21:31:50,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:50,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 93 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:50,494 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-15 21:31:50,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899256466] [2024-11-15 21:31:50,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899256466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:50,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [736817863] [2024-11-15 21:31:50,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:50,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:50,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-15 21:31:50,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:50,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [736817863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 21:31:50,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-15 21:31:50,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 15 [2024-11-15 21:31:50,589 INFO L163 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 81. Constructing proof automaton... [2024-11-15 21:31:50,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 21:31:50,590 INFO L317 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-15 21:31:50,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-15 21:31:50,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-15 21:31:50,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-15 21:31:50,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-15 21:31:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:50,591 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:50,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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) [2024-11-15 21:31:50,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:50,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:50,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:50,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:50,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:50,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-11-15 21:31:50,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-15 21:31:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:51,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable9 [2024-11-15 21:31:51,239 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-15 21:31:51,239 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-15 21:31:51,240 INFO L132 ounterexampleChecker]: Examining path program with hash -1325437954, occurence #1 [2024-11-15 21:31:51,240 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-15 21:31:51,240 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-15 21:31:51,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 21:31:51,240 INFO L85 PathProgramCache]: Analyzing trace with hash -441978457, now seen corresponding path program 6 times [2024-11-15 21:31:51,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-15 21:31:51,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154790935] [2024-11-15 21:31:51,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 21:31:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 21:31:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 21:31:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:51,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-15 21:31:51,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154790935] [2024-11-15 21:31:51,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154790935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 21:31:51,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530799657] [2024-11-15 21:31:51,401 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-15 21:31:51,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:51,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-15 21:31:51,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 21:31:51,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-15 21:31:51,449 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-15 21:31:51,449 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 21:31:51,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-15 21:31:51,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 21:31:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:51,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 21:31:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-15 21:31:51,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530799657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 21:31:51,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 21:31:51,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 27 [2024-11-15 21:31:51,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913190057] [2024-11-15 21:31:51,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 21:31:51,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-15 21:31:51,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-15 21:31:51,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-15 21:31:51,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-15 21:31:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:51,710 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-15 21:31:51,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.518518518518518) internal successors, (149), 27 states have internal predecessors, (149), 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) [2024-11-15 21:31:51,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:51,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:51,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:51,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:51,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:51,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-11-15 21:31:51,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:51,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-15 21:31:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 21:31:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-15 21:31:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-15 21:31:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-15 21:31:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-15 21:31:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-15 21:31:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-15 21:31:52,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-15 21:31:52,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-15 21:31:52,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-15 21:31:52,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-15 21:31:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 21:31:52,957 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1] [2024-11-15 21:31:52,958 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-15 21:31:52,958 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-15 21:31:52,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-15 21:31:52,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:31:52 BasicIcfg [2024-11-15 21:31:52,973 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-15 21:31:52,973 INFO L158 Benchmark]: Toolchain (without parser) took 9930.16ms. Allocated memory was 71.3MB in the beginning and 247.5MB in the end (delta: 176.2MB). Free memory was 42.5MB in the beginning and 169.2MB in the end (delta: -126.7MB). Peak memory consumption was 121.5MB. Max. memory is 8.0GB. [2024-11-15 21:31:52,973 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory is still 25.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-15 21:31:52,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.64ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 22.9MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-15 21:31:52,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.56ms. Allocated memory is still 71.3MB. Free memory was 22.9MB in the beginning and 21.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-15 21:31:52,974 INFO L158 Benchmark]: Boogie Preprocessor took 16.39ms. Allocated memory is still 71.3MB. Free memory was 21.4MB in the beginning and 20.5MB in the end (delta: 931.0kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-15 21:31:52,974 INFO L158 Benchmark]: RCFGBuilder took 248.11ms. Allocated memory is still 71.3MB. Free memory was 20.3MB in the beginning and 39.0MB in the end (delta: -18.6MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2024-11-15 21:31:52,974 INFO L158 Benchmark]: TraceAbstraction took 9371.44ms. Allocated memory was 71.3MB in the beginning and 247.5MB in the end (delta: 176.2MB). Free memory was 38.3MB in the beginning and 169.2MB in the end (delta: -130.9MB). Peak memory consumption was 117.8MB. Max. memory is 8.0GB. [2024-11-15 21:31:52,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory is still 25.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 263.64ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 22.9MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.56ms. Allocated memory is still 71.3MB. Free memory was 22.9MB in the beginning and 21.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 16.39ms. Allocated memory is still 71.3MB. Free memory was 21.4MB in the beginning and 20.5MB in the end (delta: 931.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 248.11ms. Allocated memory is still 71.3MB. Free memory was 20.3MB in the beginning and 39.0MB in the end (delta: -18.6MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * TraceAbstraction took 9371.44ms. Allocated memory was 71.3MB in the beginning and 247.5MB in the end (delta: 176.2MB). Free memory was 38.3MB in the beginning and 169.2MB in the end (delta: -130.9MB). Peak memory consumption was 117.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 107746, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 13744, dependent conditional: 13737, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94800, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 798, dependent conditional: 791, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 94800, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 798, dependent conditional: 791, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105313, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 11311, dependent conditional: 11304, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 105313, independent: 94002, independent conditional: 4553, independent unconditional: 89449, dependent: 11311, dependent conditional: 2926, dependent unconditional: 8385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 105313, independent: 94002, independent conditional: 4553, independent unconditional: 89449, dependent: 11311, dependent conditional: 2926, dependent unconditional: 8385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1183, independent: 1025, independent conditional: 64, independent unconditional: 961, dependent: 158, dependent conditional: 151, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1183, independent: 959, independent conditional: 0, independent unconditional: 959, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 224, independent: 66, independent conditional: 64, independent unconditional: 2, dependent: 158, dependent conditional: 151, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 224, independent: 66, independent conditional: 64, independent unconditional: 2, dependent: 158, dependent conditional: 151, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1371, independent: 606, independent conditional: 552, independent unconditional: 54, dependent: 765, dependent conditional: 631, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Protected Queries: 0 ], Cache Queries: [ total: 105313, independent: 92977, independent conditional: 4489, independent unconditional: 88488, dependent: 11153, dependent conditional: 2775, dependent unconditional: 8378, unknown: 1183, unknown conditional: 215, unknown unconditional: 968] , Statistics on independence cache: Total cache size (in pairs): 1185, Positive cache size: 1027, Positive conditional cache size: 66, Positive unconditional cache size: 961, Negative cache size: 158, Negative conditional cache size: 151, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 96747, Maximal queried relation: 8, Independence queries for same thread: 12946, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 243, Number of trivial persistent sets: 170, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1087, independent: 1080, independent conditional: 0, independent unconditional: 1080, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 107746, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 13744, dependent conditional: 13737, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94800, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 798, dependent conditional: 791, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 94800, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 798, dependent conditional: 791, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105313, independent: 94002, independent conditional: 92922, independent unconditional: 1080, dependent: 11311, dependent conditional: 11304, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 105313, independent: 94002, independent conditional: 4553, independent unconditional: 89449, dependent: 11311, dependent conditional: 2926, dependent unconditional: 8385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 105313, independent: 94002, independent conditional: 4553, independent unconditional: 89449, dependent: 11311, dependent conditional: 2926, dependent unconditional: 8385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1183, independent: 1025, independent conditional: 64, independent unconditional: 961, dependent: 158, dependent conditional: 151, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1183, independent: 959, independent conditional: 0, independent unconditional: 959, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 224, independent: 66, independent conditional: 64, independent unconditional: 2, dependent: 158, dependent conditional: 151, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 224, independent: 66, independent conditional: 64, independent unconditional: 2, dependent: 158, dependent conditional: 151, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1371, independent: 606, independent conditional: 552, independent unconditional: 54, dependent: 765, dependent conditional: 631, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Protected Queries: 0 ], Cache Queries: [ total: 105313, independent: 92977, independent conditional: 4489, independent unconditional: 88488, dependent: 11153, dependent conditional: 2775, dependent unconditional: 8378, unknown: 1183, unknown conditional: 215, unknown unconditional: 968] , Statistics on independence cache: Total cache size (in pairs): 1185, Positive cache size: 1027, Positive conditional cache size: 66, Positive unconditional cache size: 961, Negative cache size: 158, Negative conditional cache size: 151, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 96747, Maximal queried relation: 8, Independence queries for same thread: 12946 - PositiveResult [Line: 722]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 4.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 838 NumberOfCodeBlocks, 838 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1128 ConstructedInterpolants, 0 QuantifiedInterpolants, 4312 SizeOfPredicates, 47 NumberOfNonLiveVariables, 826 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 250/745 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: CheckTime: 0.5s, ConditionCalculationTime: 0.0s, CommutingCounterexamples: 1, ConditionCalculations: 36, TraceChecks: 2, UnknownTraceChecks: 0, ImperfectProofs: 1, QuantifiedConditions: 0, FalseConditions: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-15 21:31:52,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...