/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/mts-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 23:30:32,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 23:30:32,092 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 23:30:32,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 23:30:32,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 23:30:32,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 23:30:32,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 23:30:32,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 23:30:32,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 23:30:32,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 23:30:32,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 23:30:32,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 23:30:32,138 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 23:30:32,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 23:30:32,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 23:30:32,139 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 23:30:32,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 23:30:32,140 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 23:30:32,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 23:30:32,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 23:30:32,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 23:30:32,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 23:30:32,142 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 23:30:32,142 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 23:30:32,142 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 23:30:32,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 23:30:32,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 23:30:32,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 23:30:32,460 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 23:30:32,460 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 23:30:32,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl [2025-01-22 23:30:32,462 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl' [2025-01-22 23:30:32,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 23:30:32,487 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 23:30:32,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 23:30:32,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 23:30:32,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 23:30:32,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,511 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 23:30:32,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 23:30:32,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 23:30:32,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 23:30:32,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 23:30:32,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,526 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 23:30:32,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 23:30:32,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 23:30:32,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 23:30:32,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/1) ... [2025-01-22 23:30:32,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 23:30:32,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:30:32,569 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 23:30:32,581 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 23:30:32,605 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 23:30:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 23:30:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 23:30:32,605 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 23:30:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 23:30:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 23:30:32,605 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 23:30:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 23:30:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 23:30:32,606 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-01-22 23:30:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-22 23:30:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-22 23:30:32,607 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 23:30:32,655 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 23:30:32,657 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 23:30:32,773 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 23:30:32,773 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 23:30:32,821 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 23:30:32,822 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 23:30:32,822 INFO L201 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 11:30:32 BoogieIcfgContainer [2025-01-22 23:30:32,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 23:30:32,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 23:30:32,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 23:30:32,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 23:30:32,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 11:30:32" (1/2) ... [2025-01-22 23:30:32,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f50bd8 and model type mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 11:30:32, skipping insertion in model container [2025-01-22 23:30:32,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 11:30:32" (2/2) ... [2025-01-22 23:30:32,833 INFO L128 eAbstractionObserver]: Analyzing ICFG mts-array.wvr.bpl [2025-01-22 23:30:32,843 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 23:30:32,844 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mts-array.wvr.bpl that has 4 procedures, 20 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-22 23:30:32,844 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 23:30:32,882 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-22 23:30:32,922 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 23:30:32,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 23:30:32,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:30:32,924 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 23:30:32,925 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 23:30:32,969 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 23:30:32,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 23:30:32,988 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;@1db241cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 23:30:32,988 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-22 23:30:33,073 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 23:30:33,073 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:30:33,073 INFO L139 ounterexampleChecker]: Examining path program with hash -1261561725, occurence #1 [2025-01-22 23:30:33,073 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:30:33,073 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:30:33,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:30:33,079 INFO L85 PathProgramCache]: Analyzing trace with hash -104734425, now seen corresponding path program 1 times [2025-01-22 23:30:33,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:30:33,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361873037] [2025-01-22 23:30:33,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 23:30:33,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:30:33,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-22 23:30:33,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-22 23:30:33,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:30:33,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:30:33,331 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 23:30:33,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:30:33,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361873037] [2025-01-22 23:30:33,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361873037] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 23:30:33,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 23:30:33,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 23:30:33,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477188033] [2025-01-22 23:30:33,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 23:30:33,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 23:30:33,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:30:33,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 23:30:33,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 23:30:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:30:33,358 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:30:33,359 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 23:30:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:30:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:30:33,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 23:30:33,427 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 23:30:33,428 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:30:33,428 INFO L139 ounterexampleChecker]: Examining path program with hash 1064399085, occurence #1 [2025-01-22 23:30:33,428 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:30:33,428 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:30:33,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:30:33,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1347337261, now seen corresponding path program 1 times [2025-01-22 23:30:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:30:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206485333] [2025-01-22 23:30:33,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 23:30:33,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:30:33,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 23:30:33,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 23:30:33,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:30:33,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:30:37,291 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 23:30:37,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:30:37,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206485333] [2025-01-22 23:30:37,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206485333] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:30:37,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522668012] [2025-01-22 23:30:37,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 23:30:37,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:30:37,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:30:37,295 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 23:30:37,296 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 23:30:37,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 23:30:37,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 23:30:37,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 23:30:37,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:30:37,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-01-22 23:30:37,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:30:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:30:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 23:30:38,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 23:30:38,787 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 201 treesize of output 151 [2025-01-22 23:30:39,314 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 23:30:39,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:30:44,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 23:30:44,559 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 1725 treesize of output 1063 [2025-01-22 23:31:49,249 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 23:31:49,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522668012] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:31:49,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:31:49,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2025-01-22 23:31:49,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118366036] [2025-01-22 23:31:49,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:31:49,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-22 23:31:49,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:31:49,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-22 23:31:49,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2025-01-22 23:31:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:31:49,252 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:31:49,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 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 23:31:49,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:31:49,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:31:53,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:31:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:31:53,297 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 23:31:53,491 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 23:31:53,492 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 23:31:53,492 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:31:53,492 INFO L139 ounterexampleChecker]: Examining path program with hash -1462065531, occurence #1 [2025-01-22 23:31:53,492 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 23:31:53,492 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:31:53,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:31:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1623985417, now seen corresponding path program 2 times [2025-01-22 23:31:53,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:31:53,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160566917] [2025-01-22 23:31:53,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 23:31:53,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:31:53,500 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 23:31:53,511 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 23:31:53,512 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 23:31:53,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:31:53,684 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 23:31:53,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 23:31:53,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160566917] [2025-01-22 23:31:53,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160566917] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 23:31:53,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525104019] [2025-01-22 23:31:53,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 23:31:53,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 23:31:53,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 23:31:53,689 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 23:31:53,690 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 23:31:53,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 23:31:53,730 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 23:31:53,730 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 23:31:53,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 23:31:53,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-22 23:31:53,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 23:31:53,888 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 23:31:53,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 23:31:54,057 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 23:31:54,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525104019] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 23:31:54,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 23:31:54,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 28 [2025-01-22 23:31:54,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249626763] [2025-01-22 23:31:54,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 23:31:54,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-22 23:31:54,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 23:31:54,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-22 23:31:54,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2025-01-22 23:31:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:31:54,059 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 23:31:54,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8275862068965516) internal successors, (82), 28 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 23:31:54,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:31:54,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:31:54,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 23:31:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 23:31:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 23:31:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 23:31:54,634 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 23:31:54,828 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 23:31:54,829 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 23:31:54,829 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 23:31:54,829 INFO L139 ounterexampleChecker]: Examining path program with hash -1462065531, occurence #2 [2025-01-22 23:31:54,829 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 23:31:54,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-01-22 23:31:54,830 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:31:54,830 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-22 23:31:54,830 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 23:31:54,830 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-22 23:31:54,830 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 23:31:54,830 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 23:31:54,830 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 23:31:54,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 23:31:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1834614275, now seen corresponding path program 3 times [2025-01-22 23:31:54,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 23:31:54,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257026301] [2025-01-22 23:31:54,831 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 23:31:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 23:31:54,835 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 23:31:54,990 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 23:31:54,990 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 23:31:54,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2025-01-22 23:45:00,908 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-01-22 23:45:00,908 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-01-22 23:45:00,917 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2025-01-22 23:45:00,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-22 23:45:00,918 WARN L596 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 41 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-4-3-2-2-2-7-13-4-7-7-11-6-8-6-8-6-8-6-8-6-8-5-8-5-8-5-8-5-8-5-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-6-10-7-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-7-8-7-8-7-8-7-8-7-8-7-8-7-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 context. [2025-01-22 23:45:00,920 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-01-22 23:45:00,920 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-22 23:45:00,920 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-22 23:45:00,926 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2025-01-22 23:45:00,929 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-22 23:45:00,929 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-22 23:45:00,940 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 23:45:00,941 INFO L201 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.01 11:45:00 BasicIcfg [2025-01-22 23:45:00,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-22 23:45:00,942 INFO L158 Benchmark]: Toolchain (without parser) took 868454.16ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 80.9MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. [2025-01-22 23:45:00,942 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:45:00,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.78ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:45:00,942 INFO L158 Benchmark]: Boogie Preprocessor took 21.65ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.9MB in the end (delta: 718.5kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:45:00,943 INFO L158 Benchmark]: RCFGBuilder took 286.66ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 67.9MB in the end (delta: 11.0MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 23:45:00,943 INFO L158 Benchmark]: TraceAbstraction took 868114.90ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.3MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. [2025-01-22 23:45:00,944 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 0.20ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.78ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 21.65ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.9MB in the end (delta: 718.5kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 286.66ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 67.9MB in the end (delta: 11.0MB). There was no memory consumed. Max. memory is 16.0GB. * TraceAbstraction took 868114.90ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.3MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1078, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 181, dependent conditional: 181, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 897, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 222, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 222, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 897, independent: 675, independent conditional: 0, independent unconditional: 675, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 222, unknown conditional: 0, unknown unconditional: 222] , Statistics on independence cache: Total cache size (in pairs): 222, Positive cache size: 222, Positive conditional cache size: 0, Positive unconditional cache size: 222, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 659, Maximal queried relation: 0, Independence queries for same thread: 181, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 21, Number of trivial persistent sets: 11, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 238, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1078, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 181, dependent conditional: 181, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 659, independent unconditional: 238, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 897, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 897, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 222, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 222, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 897, independent: 675, independent conditional: 0, independent unconditional: 675, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 222, unknown conditional: 0, unknown unconditional: 222] , Statistics on independence cache: Total cache size (in pairs): 222, Positive cache size: 222, Positive conditional cache size: 0, Positive unconditional cache size: 222, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 659, Maximal queried relation: 0, Independence queries for same thread: 181 - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 41 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-4-3-2-2-2-7-13-4-7-7-11-6-8-6-8-6-8-6-8-6-8-5-8-5-8-5-8-5-8-5-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-6-10-7-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-7-8-7-8-7-8-7-8-7-8-7-8-7-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 context. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PartialOrderCegarLoop was analyzing trace of length 41 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-4-3-2-2-2-7-13-4-7-7-11-6-8-6-8-6-8-6-8-6-8-5-8-5-8-5-8-5-8-5-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-6-10-7-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-7-8-7-8-7-8-7-8-7-8-7-8-7-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 context. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PartialOrderCegarLoop was analyzing trace of length 41 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-4-3-2-2-2-7-13-4-7-7-11-6-8-6-8-6-8-6-8-6-8-5-8-5-8-5-8-5-8-5-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-6-10-7-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-7-8-7-8-7-8-7-8-7-8-7-8-7-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 context. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PartialOrderCegarLoop was analyzing trace of length 41 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-4-3-2-2-2-7-13-4-7-7-11-6-8-6-8-6-8-6-8-6-8-5-8-5-8-5-8-5-8-5-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-6-10-7-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-7-8-7-8-7-8-7-8-7-8-7-8-7-8-4-8-4-8-4-7-4-7-4-7-4-7-3-7-3-7-3-7-3-4-2-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 868.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 4.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 76.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 9922 SizeOfPredicates, 12 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/75 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 2, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown