/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 01:04:59,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 01:04:59,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 01:04:59,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 01:04:59,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 01:04:59,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 01:04:59,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 01:04:59,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 01:04:59,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 01:04:59,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 01:04:59,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 01:04:59,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 01:04:59,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 01:04:59,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 01:04:59,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 01:04:59,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 01:04:59,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 01:04:59,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 01:04:59,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 01:04:59,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 01:04:59,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 01:04:59,737 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-12-17 01:04:59,738 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-12-17 01:04:59,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl [2024-12-17 01:04:59,739 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl' [2024-12-17 01:04:59,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 01:04:59,763 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-12-17 01:04:59,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 01:04:59,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 01:04:59,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 01:04:59,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,780 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-12-17 01:04:59,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 01:04:59,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 01:04:59,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 01:04:59,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 01:04:59,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 01:04:59,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 01:04:59,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 01:04:59,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 01:04:59,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/1) ... [2024-12-17 01:04:59,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 01:04:59,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:04:59,826 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) [2024-12-17 01:04:59,828 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 [2024-12-17 01:04:59,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-12-17 01:04:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 01:04:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 01:04:59,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-12-17 01:04:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 01:04:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 01:04:59,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-12-17 01:04:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 01:04:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 01:04:59,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2024-12-17 01:04:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 01:04:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 01:04:59,845 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 01:04:59,883 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 01:04:59,889 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 01:04:59,982 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 01:04:59,982 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 01:05:00,016 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 01:05:00,016 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 01:05:00,020 INFO L201 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:05:00 BoogieIcfgContainer [2024-12-17 01:05:00,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 01:05:00,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 01:05:00,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 01:05:00,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 01:05:00,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:04:59" (1/2) ... [2024-12-17 01:05:00,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480d9c6 and model type three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 01:05:00, skipping insertion in model container [2024-12-17 01:05:00,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:05:00" (2/2) ... [2024-12-17 01:05:00,030 INFO L128 eAbstractionObserver]: Analyzing ICFG three-array-max.wvr.bpl [2024-12-17 01:05:00,044 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 01:05:00,045 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG three-array-max.wvr.bpl that has 4 procedures, 21 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-12-17 01:05:00,045 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 01:05:00,074 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 01:05:00,124 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 01:05:00,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 01:05:00,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:05:00,127 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) [2024-12-17 01:05:00,128 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 [2024-12-17 01:05:00,177 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 01:05:00,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 01:05:00,204 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;@7eef9eb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 01:05:00,204 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 01:05:00,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:00,471 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:00,472 INFO L139 ounterexampleChecker]: Examining path program with hash 311667231, occurence #1 [2024-12-17 01:05:00,472 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:05:00,472 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:00,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1827188352, now seen corresponding path program 1 times [2024-12-17 01:05:00,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:00,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804039447] [2024-12-17 01:05:00,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:05:00,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:05:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:05:00,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804039447] [2024-12-17 01:05:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804039447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:05:00,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 01:05:00,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-17 01:05:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379647099] [2024-12-17 01:05:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:05:00,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 01:05:00,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:00,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 01:05:00,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-17 01:05:00,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:00,796 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:00,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-12-17 01:05:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 01:05:01,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:01,128 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:01,128 INFO L139 ounterexampleChecker]: Examining path program with hash 631999242, occurence #1 [2024-12-17 01:05:01,129 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:05:01,129 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:01,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:01,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2105633685, now seen corresponding path program 1 times [2024-12-17 01:05:01,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:01,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133723431] [2024-12-17 01:05:01,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:05:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:05:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 01:05:01,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:01,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133723431] [2024-12-17 01:05:01,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133723431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:05:01,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 01:05:01,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 01:05:01,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455037577] [2024-12-17 01:05:01,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:05:01,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 01:05:01,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:01,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 01:05:01,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 01:05:01,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,166 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:01,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-12-17 01:05:01,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:01,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 01:05:01,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:01,209 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:01,209 INFO L139 ounterexampleChecker]: Examining path program with hash 234838013, occurence #1 [2024-12-17 01:05:01,209 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:05:01,209 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:01,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash 781621231, now seen corresponding path program 2 times [2024-12-17 01:05:01,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:01,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310855769] [2024-12-17 01:05:01,210 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 01:05:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:01,234 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 01:05:01,234 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 01:05:01,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:01,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310855769] [2024-12-17 01:05:01,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310855769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:05:01,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 01:05:01,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 01:05:01,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920735743] [2024-12-17 01:05:01,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:05:01,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 01:05:01,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:01,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 01:05:01,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-17 01:05:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,366 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:01,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-12-17 01:05:01,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:01,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:01,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-17 01:05:01,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:01,502 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:01,502 INFO L139 ounterexampleChecker]: Examining path program with hash -381256339, occurence #1 [2024-12-17 01:05:01,502 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:05:01,502 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:01,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:01,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1459484582, now seen corresponding path program 3 times [2024-12-17 01:05:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:01,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304883976] [2024-12-17 01:05:01,503 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 01:05:01,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:01,524 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 01:05:01,524 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 01:05:01,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:01,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304883976] [2024-12-17 01:05:01,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304883976] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:05:01,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343544430] [2024-12-17 01:05:01,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 01:05:01,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:01,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:05:01,582 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) [2024-12-17 01:05:01,584 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 [2024-12-17 01:05:01,619 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 01:05:01,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:01,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-17 01:05:01,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:05:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 01:05:01,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:05:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 01:05:01,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343544430] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:05:01,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:05:01,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-12-17 01:05:01,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425385687] [2024-12-17 01:05:01,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:05:01,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 01:05:01,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:01,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 01:05:01,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-17 01:05:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,712 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:01,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2024-12-17 01:05:01,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:01,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:01,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:01,845 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 [2024-12-17 01:05:02,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:02,041 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:02,041 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:02,041 INFO L139 ounterexampleChecker]: Examining path program with hash -1169482625, occurence #1 [2024-12-17 01:05:02,041 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:05:02,041 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:02,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:02,041 INFO L85 PathProgramCache]: Analyzing trace with hash 824011235, now seen corresponding path program 4 times [2024-12-17 01:05:02,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:02,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766452755] [2024-12-17 01:05:02,042 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 01:05:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:02,055 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 01:05:02,055 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:05:02,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:02,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766452755] [2024-12-17 01:05:02,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766452755] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:05:02,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364402631] [2024-12-17 01:05:02,133 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 01:05:02,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:02,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:05:02,135 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) [2024-12-17 01:05:02,140 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 [2024-12-17 01:05:02,175 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 01:05:02,175 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:02,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 01:05:02,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:05:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 01:05:02,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:05:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 01:05:02,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364402631] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:05:02,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:05:02,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-12-17 01:05:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806149905] [2024-12-17 01:05:02,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:05:02,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-17 01:05:02,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:02,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-17 01:05:02,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-17 01:05:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:02,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:02,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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) [2024-12-17 01:05:02,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:02,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:02,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:02,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:02,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:05:02,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-17 01:05:02,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:02,528 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:02,528 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:02,528 INFO L139 ounterexampleChecker]: Examining path program with hash -152014729, occurence #1 [2024-12-17 01:05:02,528 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:05:02,528 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:02,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash -655769318, now seen corresponding path program 5 times [2024-12-17 01:05:02,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:02,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082047819] [2024-12-17 01:05:02,529 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 01:05:02,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:02,559 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 01:05:02,559 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:05:02,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:02,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082047819] [2024-12-17 01:05:02,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082047819] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:05:02,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376091350] [2024-12-17 01:05:02,683 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 01:05:02,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:02,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:05:02,685 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) [2024-12-17 01:05:02,687 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 [2024-12-17 01:05:02,721 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 01:05:02,722 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:02,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-17 01:05:02,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:05:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-17 01:05:02,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:05:02,838 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-17 01:05:02,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376091350] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:05:02,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:05:02,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2024-12-17 01:05:02,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237206836] [2024-12-17 01:05:02,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:05:02,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-17 01:05:02,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:02,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-17 01:05:02,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-17 01:05:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:02,839 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:02,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 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) [2024-12-17 01:05:02,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:02,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:02,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:02,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:02,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:05:02,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-17 01:05:03,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-17 01:05:03,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:03,451 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:03,451 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:03,452 INFO L139 ounterexampleChecker]: Examining path program with hash -152014729, occurence #2 [2024-12-17 01:05:03,452 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 01:05:03,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-12-17 01:05:03,452 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 01:05:03,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-17 01:05:03,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 01:05:03,453 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 01:05:03,453 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:03,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash -546029062, now seen corresponding path program 6 times [2024-12-17 01:05:03,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:03,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806020864] [2024-12-17 01:05:03,453 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-17 01:05:03,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:03,487 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-12-17 01:05:03,487 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:03,646 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:05:03,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:05:03,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806020864] [2024-12-17 01:05:03,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806020864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:05:03,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016062415] [2024-12-17 01:05:03,647 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-17 01:05:03,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:03,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:05:03,649 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) [2024-12-17 01:05:03,650 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 [2024-12-17 01:05:03,699 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-12-17 01:05:03,699 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:05:03,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-17 01:05:03,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:05:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-17 01:05:03,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:05:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-17 01:05:03,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016062415] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:05:03,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:05:03,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 7] total 14 [2024-12-17 01:05:03,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752179843] [2024-12-17 01:05:03,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:05:03,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-17 01:05:03,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:05:03,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-17 01:05:03,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-12-17 01:05:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:03,838 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:05:03,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 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) [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-17 01:05:03,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:05:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:05:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:05:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:05:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:05:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-17 01:05:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-17 01:05:04,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-17 01:05:04,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:05:04,286 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 01:05:04,286 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:05:04,286 INFO L139 ounterexampleChecker]: Examining path program with hash -152014729, occurence #3 [2024-12-17 01:05:04,286 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 01:05:04,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-12-17 01:05:04,287 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 01:05:04,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-12-17 01:05:04,287 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 01:05:04,287 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 01:05:04,287 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:05:04,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:05:04,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1039714324, now seen corresponding path program 7 times [2024-12-17 01:05:04,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:05:04,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239253937] [2024-12-17 01:05:04,288 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-17 01:05:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:05:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2024-12-17 01:19:41,776 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-12-17 01:19:41,776 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-12-17 01:19:42,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-12-17 01:19:42,794 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown