/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 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 23:45:03,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 23:45:04,006 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 [2025-01-22 23:45:04,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 23:45:04,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 23:45:04,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 23:45:04,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 23:45:04,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 23:45:04,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 23:45:04,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 23:45:04,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 23:45:04,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 23:45:04,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 23:45:04,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 23:45:04,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 23:45:04,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 23:45:04,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 23:45:04,066 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 23:45:04,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 23:45:04,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 23:45:04,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 23:45:04,067 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 23:45:04,067 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 23:45:04,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-22 23:45:04,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 23:45:04,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 23:45:04,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 23:45:04,358 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 23:45:04,360 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 23:45:04,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2025-01-22 23:45:04,361 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2025-01-22 23:45:04,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 23:45:04,385 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 23:45:04,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 23:45:04,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 23:45:04,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 23:45:04,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,407 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 23:45:04,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 23:45:04,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 23:45:04,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 23:45:04,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 23:45:04,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,420 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 23:45:04,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 23:45:04,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 23:45:04,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 23:45:04,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/1) ... [2025-01-22 23:45:04,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 23:45:04,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:04,462 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) [2025-01-22 23:45:04,471 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 [2025-01-22 23:45:04,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 23:45:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 23:45:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 23:45:04,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 23:45:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 23:45:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 23:45:04,498 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 23:45:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 23:45:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 23:45:04,498 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-01-22 23:45:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-22 23:45:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-22 23:45:04,499 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-22 23:45:04,546 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 23:45:04,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 23:45:04,620 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 23:45:04,620 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 23:45:04,646 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 23:45:04,649 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 23:45:04,650 INFO L201 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 11:45:04 BoogieIcfgContainer [2025-01-22 23:45:04,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 23:45:04,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 23:45:04,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 23:45:04,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 23:45:04,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:45:04" (1/2) ... [2025-01-22 23:45:04,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a52f6ee and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 11:45:04, skipping insertion in model container [2025-01-22 23:45:04,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 11:45:04" (2/2) ... [2025-01-22 23:45:04,659 INFO L128 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2025-01-22 23:45:04,672 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 23:45:04,674 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sum-fun-alt.wvr.bpl that has 4 procedures, 20 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-22 23:45:04,674 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 23:45:04,709 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-22 23:45:04,750 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 23:45:04,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 23:45:04,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:04,756 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) [2025-01-22 23:45:04,759 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 [2025-01-22 23:45:04,827 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 23:45:04,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 23:45:04,855 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;@3cd94a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 23:45:04,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-22 23:45:05,021 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)] === [2025-01-22 23:45:05,021 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:05,021 INFO L139 ounterexampleChecker]: Examining path program with hash 464764640, occurence #1 [2025-01-22 23:45:05,021 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:45:05,021 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:05,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1490265330, now seen corresponding path program 1 times [2025-01-22 23:45:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745650947] [2025-01-22 23:45:05,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 23:45:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:05,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-22 23:45:05,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-22 23:45:05,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:45:05,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:05,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:05,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745650947] [2025-01-22 23:45:05,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745650947] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 23:45:05,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 23:45:05,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 23:45:05,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718281930] [2025-01-22 23:45:05,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 23:45:05,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 23:45:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:05,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 23:45:05,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 23:45:05,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:05,319 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:05,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:05,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:05,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 23:45:05,384 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)] === [2025-01-22 23:45:05,384 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:05,384 INFO L139 ounterexampleChecker]: Examining path program with hash -1504241846, occurence #1 [2025-01-22 23:45:05,384 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:45:05,384 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:05,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:05,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1906162644, now seen corresponding path program 1 times [2025-01-22 23:45:05,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:05,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372417792] [2025-01-22 23:45:05,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 23:45:05,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:05,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 23:45:05,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 23:45:05,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:45:05,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:06,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:06,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372417792] [2025-01-22 23:45:06,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372417792] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:45:06,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774245027] [2025-01-22 23:45:06,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 23:45:06,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:06,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:06,116 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) [2025-01-22 23:45:06,118 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 [2025-01-22 23:45:06,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 23:45:06,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 23:45:06,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:45:06,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:06,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-22 23:45:06,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:45:06,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:06,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:06,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 23:45:06,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2025-01-22 23:45:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:06,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:45:06,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 23:45:06,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 29 treesize of output 116 [2025-01-22 23:45:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:07,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774245027] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:45:07,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:45:07,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-01-22 23:45:07,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101794481] [2025-01-22 23:45:07,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:45:07,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-22 23:45:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:07,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-22 23:45:07,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2025-01-22 23:45:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:07,990 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:07,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:07,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:07,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:08,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:08,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:45:08,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-22 23:45:09,158 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 [2025-01-22 23:45:09,158 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)] === [2025-01-22 23:45:09,158 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:09,158 INFO L139 ounterexampleChecker]: Examining path program with hash 264260834, occurence #1 [2025-01-22 23:45:09,158 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:45:09,158 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:09,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:09,159 INFO L85 PathProgramCache]: Analyzing trace with hash -640358690, now seen corresponding path program 2 times [2025-01-22 23:45:09,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:09,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762580729] [2025-01-22 23:45:09,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 23:45:09,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:09,166 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 23:45:09,178 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 23:45:09,182 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 23:45:09,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:09,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762580729] [2025-01-22 23:45:09,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762580729] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:45:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592229984] [2025-01-22 23:45:09,377 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 23:45:09,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:09,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:09,382 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) [2025-01-22 23:45:09,384 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 [2025-01-22 23:45:09,406 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 23:45:09,419 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 23:45:09,419 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 23:45:09,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:09,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-22 23:45:09,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:45:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:09,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:45:09,874 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:09,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592229984] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:45:09,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:45:09,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 12] total 27 [2025-01-22 23:45:09,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412274971] [2025-01-22 23:45:09,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:45:09,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-22 23:45:09,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:09,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-22 23:45:09,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2025-01-22 23:45:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:09,878 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:09,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:09,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:09,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:45:09,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:45:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 23:45:10,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-22 23:45:10,707 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 [2025-01-22 23:45:10,707 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)] === [2025-01-22 23:45:10,707 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:10,707 INFO L139 ounterexampleChecker]: Examining path program with hash 264260834, occurence #2 [2025-01-22 23:45:10,707 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 23:45:10,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-01-22 23:45:10,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:10,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-22 23:45:10,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:10,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-22 23:45:10,709 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 23:45:10,709 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 23:45:10,709 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:10,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1192756316, now seen corresponding path program 3 times [2025-01-22 23:45:10,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:10,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862164847] [2025-01-22 23:45:10,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 23:45:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:10,714 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 23:45:10,739 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 23:45:10,739 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 23:45:10,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:11,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:11,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862164847] [2025-01-22 23:45:11,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862164847] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:45:11,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372138391] [2025-01-22 23:45:11,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 23:45:11,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:11,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:11,975 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) [2025-01-22 23:45:11,976 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 [2025-01-22 23:45:12,004 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 23:45:12,022 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 23:45:12,022 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 23:45:12,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:12,023 WARN L254 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-01-22 23:45:12,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:45:13,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,662 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:13,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,666 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:13,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,670 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,676 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:13,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:45:13,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 21 [2025-01-22 23:45:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:13,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:45:22,600 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,600 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,602 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,605 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,607 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,608 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,608 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,609 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,610 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,612 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,613 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,614 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,615 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,615 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,616 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,618 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,619 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,620 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,621 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,623 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,624 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,628 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,630 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,632 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,632 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,634 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,636 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,642 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,644 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:22,647 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 23:45:23,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 23:45:23,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 45 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 46 case distinctions, treesize of input 65 treesize of output 454 [2025-01-22 23:45:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:28,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372138391] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:45:28,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:45:28,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 52 [2025-01-22 23:45:28,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789172692] [2025-01-22 23:45:28,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:45:28,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-01-22 23:45:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:28,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-01-22 23:45:28,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=2504, Unknown=3, NotChecked=0, Total=2756 [2025-01-22 23:45:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:28,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:28,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.9245283018867925) internal successors, (102), 52 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:28,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:28,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:45:28,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 23:45:28,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:47,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:47,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:45:47,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 23:45:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2025-01-22 23:45:47,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-22 23:45:47,695 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 [2025-01-22 23:45:47,695 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)] === [2025-01-22 23:45:47,695 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:47,696 INFO L139 ounterexampleChecker]: Examining path program with hash 264260834, occurence #3 [2025-01-22 23:45:47,696 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 23:45:47,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-01-22 23:45:47,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:47,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-01-22 23:45:47,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:47,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-01-22 23:45:47,697 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 23:45:47,697 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 23:45:47,697 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:47,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1536302102, now seen corresponding path program 4 times [2025-01-22 23:45:47,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:47,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120796072] [2025-01-22 23:45:47,697 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 23:45:47,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:47,702 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 46 statements into 2 equivalence classes. [2025-01-22 23:45:47,707 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-22 23:45:47,707 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 23:45:47,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:47,961 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:47,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:47,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120796072] [2025-01-22 23:45:47,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120796072] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:45:47,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280063238] [2025-01-22 23:45:47,961 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 23:45:47,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:47,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:47,963 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) [2025-01-22 23:45:47,964 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 [2025-01-22 23:45:47,986 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 46 statements into 2 equivalence classes. [2025-01-22 23:45:47,998 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-22 23:45:47,998 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 23:45:47,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:47,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-22 23:45:48,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:45:48,254 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:48,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:45:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:48,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280063238] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:45:48,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:45:48,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 16] total 34 [2025-01-22 23:45:48,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352561302] [2025-01-22 23:45:48,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:45:48,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-22 23:45:48,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:48,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-22 23:45:48,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2025-01-22 23:45:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:48,575 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:48,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.085714285714286) internal successors, (108), 34 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:48,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:48,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:45:48,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 23:45:48,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2025-01-22 23:45:48,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:50,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:50,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 23:45:50,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-22 23:45:50,749 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 [2025-01-22 23:45:50,749 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)] === [2025-01-22 23:45:50,749 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:50,749 INFO L139 ounterexampleChecker]: Examining path program with hash 250704547, occurence #1 [2025-01-22 23:45:50,749 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:45:50,749 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:50,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:50,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1853170364, now seen corresponding path program 5 times [2025-01-22 23:45:50,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:50,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077313315] [2025-01-22 23:45:50,750 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 23:45:50,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:50,755 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 60 statements into 6 equivalence classes. [2025-01-22 23:45:50,771 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 60 of 60 statements. [2025-01-22 23:45:50,772 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-22 23:45:50,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-01-22 23:45:50,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:50,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077313315] [2025-01-22 23:45:50,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077313315] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 23:45:50,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 23:45:50,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-22 23:45:50,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599322332] [2025-01-22 23:45:50,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 23:45:50,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 23:45:50,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:50,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 23:45:50,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-22 23:45:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:50,931 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:50,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:50,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:50,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:50,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:50,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:50,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 23:45:50,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 23:45:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 23:45:50,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-22 23:45:50,996 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)] === [2025-01-22 23:45:50,996 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:50,996 INFO L139 ounterexampleChecker]: Examining path program with hash 667874594, occurence #1 [2025-01-22 23:45:50,996 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:45:50,996 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:50,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:50,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1039373542, now seen corresponding path program 6 times [2025-01-22 23:45:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:50,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576722518] [2025-01-22 23:45:50,997 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 23:45:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:51,001 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 6 equivalence classes. [2025-01-22 23:45:51,019 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 58 of 58 statements. [2025-01-22 23:45:51,019 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-22 23:45:51,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:51,271 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 5 proven. 58 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-22 23:45:51,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:51,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576722518] [2025-01-22 23:45:51,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576722518] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:45:51,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366074401] [2025-01-22 23:45:51,272 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 23:45:51,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:51,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:51,274 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) [2025-01-22 23:45:51,276 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 [2025-01-22 23:45:51,298 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 6 equivalence classes. [2025-01-22 23:45:51,317 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 58 of 58 statements. [2025-01-22 23:45:51,317 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-22 23:45:51,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:51,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-22 23:45:51,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:45:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 48 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:51,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:45:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 56 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366074401] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:45:52,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:45:52,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 17] total 34 [2025-01-22 23:45:52,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183781544] [2025-01-22 23:45:52,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:45:52,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-22 23:45:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:52,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-22 23:45:52,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=929, Unknown=0, NotChecked=0, Total=1190 [2025-01-22 23:45:52,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:52,050 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:52,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.342857142857143) internal successors, (117), 34 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 23:45:52,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-22 23:45:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 23:45:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-01-22 23:45:54,232 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 [2025-01-22 23:45:54,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:54,428 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)] === [2025-01-22 23:45:54,428 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:54,428 INFO L139 ounterexampleChecker]: Examining path program with hash 1946948479, occurence #1 [2025-01-22 23:45:54,428 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:45:54,428 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:54,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash -339280342, now seen corresponding path program 7 times [2025-01-22 23:45:54,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:54,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888551240] [2025-01-22 23:45:54,429 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 23:45:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:54,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-22 23:45:54,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-22 23:45:54,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:45:54,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:54,903 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 25 proven. 85 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-22 23:45:54,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:45:54,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888551240] [2025-01-22 23:45:54,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888551240] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:45:54,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985028002] [2025-01-22 23:45:54,904 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 23:45:54,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:54,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:45:54,907 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) [2025-01-22 23:45:54,909 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 [2025-01-22 23:45:54,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-22 23:45:54,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-22 23:45:54,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:45:54,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:45:54,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-22 23:45:54,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:45:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 25 proven. 85 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-22 23:45:55,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:45:56,284 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 25 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:45:56,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985028002] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:45:56,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:45:56,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 27] total 51 [2025-01-22 23:45:56,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691199953] [2025-01-22 23:45:56,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:45:56,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2025-01-22 23:45:56,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:45:56,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2025-01-22 23:45:56,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=2114, Unknown=0, NotChecked=0, Total=2652 [2025-01-22 23:45:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:56,287 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:45:56,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.0384615384615383) internal successors, (158), 51 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2025-01-22 23:45:56,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-01-22 23:45:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 23:45:57,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-22 23:45:58,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:45:58,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 23:45:58,027 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:45:58,027 INFO L139 ounterexampleChecker]: Examining path program with hash 1946948479, occurence #2 [2025-01-22 23:45:58,027 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 23:45:58,027 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-22 23:45:58,027 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:58,028 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-01-22 23:45:58,028 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:58,028 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-22 23:45:58,028 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:58,028 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-22 23:45:58,028 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:58,028 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-01-22 23:45:58,028 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:45:58,028 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-01-22 23:45:58,028 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 23:45:58,028 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 23:45:58,028 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:45:58,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:45:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1303226352, now seen corresponding path program 8 times [2025-01-22 23:45:58,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:45:58,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698832429] [2025-01-22 23:45:58,029 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 23:45:58,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:45:58,033 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 76 statements into 2 equivalence classes. [2025-01-22 23:45:58,063 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 76 of 76 statements. [2025-01-22 23:45:58,063 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 23:45:58,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:46:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 12 proven. 150 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 23:46:00,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:46:00,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698832429] [2025-01-22 23:46:00,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698832429] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:46:00,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201789417] [2025-01-22 23:46:00,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 23:46:00,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:46:00,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:46:00,789 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 23:46:00,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-22 23:46:00,811 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 76 statements into 2 equivalence classes. [2025-01-22 23:46:00,839 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 76 of 76 statements. [2025-01-22 23:46:00,840 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 23:46:00,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:46:00,842 WARN L254 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 136 conjuncts are in the unsatisfiable core [2025-01-22 23:46:00,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:46:03,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 39 [2025-01-22 23:46:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 23:46:03,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:46:18,448 WARN L286 SmtUtils]: Spent 10.88s on a formula simplification that was a NOOP. DAG size: 1128 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-22 23:46:18,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 23:46:18,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 32 select indices, 32 select index equivalence classes, 45 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 451 case distinctions, treesize of input 159 treesize of output 3182 [2025-01-22 23:55:25,445 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-22 23:55:25,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2025-01-22 23:55:25,446 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-22 23:55:25,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-22 23:55:25,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:55:25,655 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 [2025-01-22 23:55:25,656 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2025-01-22 23:55:25,660 INFO L158 Benchmark]: Toolchain (without parser) took 621274.78ms. Allocated memory was 117.4MB in the beginning and 637.5MB in the end (delta: 520.1MB). Free memory was 81.1MB in the beginning and 364.3MB in the end (delta: -283.2MB). Peak memory consumption was 391.6MB. Max. memory is 16.0GB. [2025-01-22 23:55:25,660 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:55:25,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.48ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:55:25,661 INFO L158 Benchmark]: Boogie Preprocessor took 19.26ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 79.1MB in the end (delta: 710.3kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:55:25,661 INFO L158 Benchmark]: RCFGBuilder took 220.77ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 68.8MB in the end (delta: 10.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:55:25,661 INFO L158 Benchmark]: TraceAbstraction took 621006.19ms. Allocated memory was 117.4MB in the beginning and 637.5MB in the end (delta: 520.1MB). Free memory was 68.2MB in the beginning and 364.3MB in the end (delta: -296.1MB). Peak memory consumption was 391.6MB. Max. memory is 16.0GB. [2025-01-22 23:55:25,662 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 22.48ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 19.26ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 79.1MB in the end (delta: 710.3kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 220.77ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 68.8MB in the end (delta: 10.2MB). There was no memory consumed. Max. memory is 16.0GB. * TraceAbstraction took 621006.19ms. Allocated memory was 117.4MB in the beginning and 637.5MB in the end (delta: 520.1MB). Free memory was 68.2MB in the beginning and 364.3MB in the end (delta: -296.1MB). Peak memory consumption was 391.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...