/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 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/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 20:37:11,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 20:37:11,788 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 20:37:11,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 20:37:11,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 20:37:11,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 20:37:11,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 20:37:11,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 20:37:11,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 20:37:11,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 20:37:11,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 20:37:11,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 20:37:11,807 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 20:37:11,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 20:37:11,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 20:37:11,808 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 20:37:11,808 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 -> SUFFICIENT [2025-01-22 20:37:12,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 20:37:12,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 20:37:12,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 20:37:12,029 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 20:37:12,030 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 20:37:12,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2025-01-22 20:37:12,032 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2025-01-22 20:37:12,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 20:37:12,048 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 20:37:12,049 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 20:37:12,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 20:37:12,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 20:37:12,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,067 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 20:37:12,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 20:37:12,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 20:37:12,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 20:37:12,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 20:37:12,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,077 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 20:37:12,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 20:37:12,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 20:37:12,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 20:37:12,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/1) ... [2025-01-22 20:37:12,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 20:37:12,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:12,107 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 20:37:12,112 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 20:37:12,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 20:37:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 20:37:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 20:37:12,134 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 20:37:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 20:37:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 20:37:12,134 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 20:37:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 20:37:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 20:37:12,135 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 20:37:12,171 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 20:37:12,172 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 20:37:12,239 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 20:37:12,239 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 20:37:12,266 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 20:37:12,266 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 20:37:12,267 INFO L201 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 08:37:12 BoogieIcfgContainer [2025-01-22 20:37:12,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 20:37:12,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 20:37:12,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 20:37:12,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 20:37:12,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:37:12" (1/2) ... [2025-01-22 20:37:12,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bb445c and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 08:37:12, skipping insertion in model container [2025-01-22 20:37:12,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 08:37:12" (2/2) ... [2025-01-22 20:37:12,283 INFO L128 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2025-01-22 20:37:12,292 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 20:37:12,293 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG counter-fun.wvr.bpl that has 3 procedures, 15 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 20:37:12,293 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 20:37:12,318 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-22 20:37:12,345 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 20:37:12,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 20:37:12,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:12,348 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 20:37:12,351 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 20:37:12,387 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 20:37:12,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 20:37:12,410 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;@55370d84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 20:37:12,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-22 20:37:12,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:12,539 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:12,539 INFO L139 ounterexampleChecker]: Examining path program with hash -1302150382, occurence #1 [2025-01-22 20:37:12,539 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:12,539 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:12,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:12,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1330744387, now seen corresponding path program 1 times [2025-01-22 20:37:12,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:12,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242598646] [2025-01-22 20:37:12,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:37:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:12,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-22 20:37:12,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-22 20:37:12,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:37:12,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:12,704 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 20:37:12,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:12,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242598646] [2025-01-22 20:37:12,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242598646] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 20:37:12,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 20:37:12,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 20:37:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589078372] [2025-01-22 20:37:12,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 20:37:12,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 20:37:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:12,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 20:37:12,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-22 20:37:12,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:12,748 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:12,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 20:37:12,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:12,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 20:37:12,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:12,813 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:12,813 INFO L139 ounterexampleChecker]: Examining path program with hash 1964155569, occurence #1 [2025-01-22 20:37:12,813 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:12,813 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:12,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1776376927, now seen corresponding path program 1 times [2025-01-22 20:37:12,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:12,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96176394] [2025-01-22 20:37:12,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:37:12,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:12,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-22 20:37:12,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 20:37:12,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:37:12,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 20:37:12,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:12,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96176394] [2025-01-22 20:37:12,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96176394] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:37:12,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301719705] [2025-01-22 20:37:12,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:37:12,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:12,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:12,975 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 20:37:12,976 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 20:37:13,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-22 20:37:13,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 20:37:13,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:37:13,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:13,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-22 20:37:13,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:37:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:13,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:37:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:13,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301719705] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:37:13,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:37:13,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2025-01-22 20:37:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679841045] [2025-01-22 20:37:13,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:37:13,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-22 20:37:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:13,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-22 20:37:13,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2025-01-22 20:37:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:13,242 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:13,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 20:37:13,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:13,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:13,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-22 20:37:13,816 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 20:37:13,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:13,817 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:13,817 INFO L139 ounterexampleChecker]: Examining path program with hash -1049548992, occurence #1 [2025-01-22 20:37:13,817 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:13,817 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:13,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1427175941, now seen corresponding path program 2 times [2025-01-22 20:37:13,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:13,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976585097] [2025-01-22 20:37:13,818 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 20:37:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:13,823 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-01-22 20:37:13,829 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-01-22 20:37:13,829 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 20:37:13,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-22 20:37:14,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:14,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976585097] [2025-01-22 20:37:14,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976585097] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 20:37:14,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 20:37:14,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-22 20:37:14,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496429466] [2025-01-22 20:37:14,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 20:37:14,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-22 20:37:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:14,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-22 20:37:14,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-22 20:37:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:14,039 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:14,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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 20:37:14,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:14,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:14,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:14,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-22 20:37:14,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:14,096 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:14,097 INFO L139 ounterexampleChecker]: Examining path program with hash 1212055886, occurence #1 [2025-01-22 20:37:14,097 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:14,097 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:14,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:14,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1167308195, now seen corresponding path program 3 times [2025-01-22 20:37:14,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:14,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963478983] [2025-01-22 20:37:14,097 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 20:37:14,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:14,102 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 5 equivalence classes. [2025-01-22 20:37:14,114 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 33 of 33 statements. [2025-01-22 20:37:14,114 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 20:37:14,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-22 20:37:14,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963478983] [2025-01-22 20:37:14,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963478983] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:37:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325310837] [2025-01-22 20:37:14,263 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 20:37:14,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:14,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:14,265 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 20:37:14,266 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 20:37:14,290 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 5 equivalence classes. [2025-01-22 20:37:14,302 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 33 of 33 statements. [2025-01-22 20:37:14,302 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 20:37:14,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:14,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-22 20:37:14,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:37:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:14,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:37:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:14,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325310837] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:37:14,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:37:14,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 14] total 31 [2025-01-22 20:37:14,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613092530] [2025-01-22 20:37:14,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:37:14,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-22 20:37:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:14,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-22 20:37:14,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2025-01-22 20:37:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:14,849 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:14,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.375) internal successors, (76), 31 states have internal predecessors, (76), 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 20:37:14,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:14,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:14,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:14,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-01-22 20:37:15,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-22 20:37:15,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:15,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:15,672 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:15,672 INFO L139 ounterexampleChecker]: Examining path program with hash 1485015623, occurence #1 [2025-01-22 20:37:15,672 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:15,672 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:15,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:15,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1716332345, now seen corresponding path program 4 times [2025-01-22 20:37:15,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:15,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316911454] [2025-01-22 20:37:15,673 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 20:37:15,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:15,676 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-01-22 20:37:15,680 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-22 20:37:15,680 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 20:37:15,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-22 20:37:15,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316911454] [2025-01-22 20:37:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316911454] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:37:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90256691] [2025-01-22 20:37:15,831 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 20:37:15,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:15,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:15,833 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 20:37:15,838 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 20:37:15,859 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-01-22 20:37:15,871 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-22 20:37:15,871 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 20:37:15,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:15,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-22 20:37:15,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:37:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:16,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:37:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:16,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90256691] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:37:16,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:37:16,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 37 [2025-01-22 20:37:16,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112589319] [2025-01-22 20:37:16,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:37:16,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-01-22 20:37:16,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:16,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-01-22 20:37:16,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2025-01-22 20:37:16,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:16,479 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:16,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.263157894736842) internal successors, (86), 37 states have internal predecessors, (86), 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 20:37:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-01-22 20:37:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 20:37:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2025-01-22 20:37:18,077 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 20:37:18,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:18,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:18,272 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:18,272 INFO L139 ounterexampleChecker]: Examining path program with hash 325738303, occurence #1 [2025-01-22 20:37:18,272 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:18,272 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:18,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash -735729611, now seen corresponding path program 5 times [2025-01-22 20:37:18,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:18,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851244586] [2025-01-22 20:37:18,273 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 20:37:18,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:18,277 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 51 statements into 9 equivalence classes. [2025-01-22 20:37:18,283 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 51 of 51 statements. [2025-01-22 20:37:18,283 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-01-22 20:37:18,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2025-01-22 20:37:18,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851244586] [2025-01-22 20:37:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851244586] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:37:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627288511] [2025-01-22 20:37:18,418 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 20:37:18,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:18,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:18,421 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 20:37:18,422 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 20:37:18,441 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 51 statements into 9 equivalence classes. [2025-01-22 20:37:18,459 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 51 of 51 statements. [2025-01-22 20:37:18,459 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-01-22 20:37:18,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:18,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-22 20:37:18,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:37:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:18,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:37:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:37:19,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627288511] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:37:19,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:37:19,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 23, 23] total 49 [2025-01-22 20:37:19,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907474776] [2025-01-22 20:37:19,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:37:19,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-01-22 20:37:19,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:19,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-01-22 20:37:19,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=738, Invalid=1712, Unknown=0, NotChecked=0, Total=2450 [2025-01-22 20:37:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:19,086 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:19,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.2) internal successors, (110), 49 states have internal predecessors, (110), 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 20:37:19,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:19,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:19,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:19,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 20:37:19,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2025-01-22 20:37:19,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 20:37:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:37:20,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:37:20,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-22 20:37:20,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:20,273 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:20,273 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:20,273 INFO L139 ounterexampleChecker]: Examining path program with hash -548346795, occurence #1 [2025-01-22 20:37:20,273 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:20,273 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:20,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash -44359239, now seen corresponding path program 6 times [2025-01-22 20:37:20,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:20,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625738999] [2025-01-22 20:37:20,273 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 20:37:20,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:20,277 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 61 statements into 13 equivalence classes. [2025-01-22 20:37:20,286 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 61 of 61 statements. [2025-01-22 20:37:20,286 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-01-22 20:37:20,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 32 proven. 84 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-01-22 20:37:20,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:20,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625738999] [2025-01-22 20:37:20,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625738999] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:37:20,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017727952] [2025-01-22 20:37:20,746 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 20:37:20,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:20,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:20,749 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 20:37:20,750 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 20:37:20,775 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 61 statements into 13 equivalence classes. [2025-01-22 20:37:20,806 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 61 of 61 statements. [2025-01-22 20:37:20,807 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-01-22 20:37:20,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:20,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 93 conjuncts are in the unsatisfiable core [2025-01-22 20:37:20,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:37:21,033 INFO L349 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2025-01-22 20:37:21,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 44 [2025-01-22 20:37:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 31 proven. 68 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2025-01-22 20:37:21,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:37:21,471 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2025-01-22 20:37:21,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2025-01-22 20:37:21,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:37:21,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2025-01-22 20:37:21,484 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 70 proven. 97 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-22 20:37:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017727952] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:37:21,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:37:21,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 10] total 18 [2025-01-22 20:37:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148154321] [2025-01-22 20:37:21,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:37:21,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-22 20:37:21,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:37:21,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-22 20:37:21,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2025-01-22 20:37:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:21,485 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:37:21,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 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 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:37:21,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:37:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:37:21,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-22 20:37:21,889 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 20:37:21,889 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:37:21,889 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:37:21,889 INFO L139 ounterexampleChecker]: Examining path program with hash 183396370, occurence #1 [2025-01-22 20:37:21,889 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:37:21,889 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:37:21,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:37:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2102676473, now seen corresponding path program 7 times [2025-01-22 20:37:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:37:21,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521856231] [2025-01-22 20:37:21,890 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 20:37:21,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:37:21,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-22 20:37:21,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-22 20:37:21,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:37:21,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-01-22 20:37:22,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:37:22,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521856231] [2025-01-22 20:37:22,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521856231] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:37:22,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671404073] [2025-01-22 20:37:22,252 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 20:37:22,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:37:22,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:37:22,254 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 20:37:22,255 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 20:37:22,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-22 20:37:22,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-22 20:37:22,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:37:22,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:37:22,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 101 conjuncts are in the unsatisfiable core [2025-01-22 20:37:22,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:37:22,600 INFO L349 Elim1Store]: treesize reduction 45, result has 44.4 percent of original size [2025-01-22 20:37:22,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 84 [2025-01-22 20:37:24,080 INFO L349 Elim1Store]: treesize reduction 96, result has 88.6 percent of original size [2025-01-22 20:37:24,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 26 new quantified variables, introduced 105 case distinctions, treesize of input 85 treesize of output 806 [2025-01-22 20:38:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 20 proven. 88 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-01-22 20:38:46,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:38:47,014 INFO L349 Elim1Store]: treesize reduction 180, result has 20.0 percent of original size [2025-01-22 20:38:47,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 184 treesize of output 120 [2025-01-22 20:38:47,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:38:47,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 100 [2025-01-22 20:38:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 74 proven. 150 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-22 20:38:47,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671404073] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:38:47,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:38:47,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 19] total 31 [2025-01-22 20:38:47,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881949042] [2025-01-22 20:38:47,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:38:47,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-22 20:38:47,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:38:47,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-22 20:38:47,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2025-01-22 20:38:47,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:38:47,057 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:38:47,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.5625) internal successors, (82), 31 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 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:47,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:38:47,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-22 20:38:47,638 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 20:38:47,638 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:38:47,638 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:38:47,638 INFO L139 ounterexampleChecker]: Examining path program with hash 183396370, occurence #2 [2025-01-22 20:38:47,638 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:38:47,638 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-22 20:38:47,639 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:47,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-01-22 20:38:47,639 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:47,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-01-22 20:38:47,639 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:47,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2025-01-22 20:38:47,639 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:47,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-22 20:38:47,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:38:47,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2025-01-22 20:38:48,688 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-01-22 20:38:48,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2025-01-22 20:38:49,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:38:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash 850715978, now seen corresponding path program 1 times [2025-01-22 20:38:49,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 20:38:49,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623084498] [2025-01-22 20:38:49,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:38:49,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:38:49,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-22 20:38:49,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-22 20:38:49,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:38:49,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-22 20:38:49,715 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-22 20:38:49,715 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-22 20:38:49,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-01-22 20:38:49,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:38:49,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2025-01-22 20:38:50,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-01-22 20:38:51,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:38:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1412077063, now seen corresponding path program 1 times [2025-01-22 20:38:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 20:38:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734568007] [2025-01-22 20:38:51,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:38:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:38:51,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-01-22 20:38:51,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-01-22 20:38:51,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:38:51,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-22 20:38:51,784 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-22 20:38:51,785 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-22 20:38:51,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2025-01-22 20:38:51,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:51,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-22 20:38:51,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:51,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-01-22 20:38:51,785 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:38:51,785 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:38:51,785 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:38:51,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:38:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash -637452171, now seen corresponding path program 8 times [2025-01-22 20:38:51,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:38:51,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362222484] [2025-01-22 20:38:51,786 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 20:38:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:38:51,790 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-01-22 20:38:51,796 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-01-22 20:38:51,796 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 20:38:51,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:38:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 38 proven. 62 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-01-22 20:38:52,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:38:52,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362222484] [2025-01-22 20:38:52,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362222484] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:38:52,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829759217] [2025-01-22 20:38:52,070 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 20:38:52,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:38:52,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:38:52,072 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 20:38:52,073 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 20:38:52,093 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-01-22 20:38:52,112 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-01-22 20:38:52,112 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 20:38:52,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:38:52,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-22 20:38:52,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:38:52,802 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 17 proven. 303 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:38:52,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:38:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 17 proven. 303 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:38:53,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829759217] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:38:53,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:38:53,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 34, 34] total 77 [2025-01-22 20:38:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718658882] [2025-01-22 20:38:53,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:38:53,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2025-01-22 20:38:53,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:38:53,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2025-01-22 20:38:53,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1165, Invalid=4841, Unknown=0, NotChecked=0, Total=6006 [2025-01-22 20:38:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:38:53,553 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:38:53,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.1794871794871793) internal successors, (170), 77 states have internal predecessors, (170), 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 20:38:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:38:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:38:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:38:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:38:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:38:53,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:53,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:38:53,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:38:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2025-01-22 20:38:55,812 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 20:38:56,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable10,SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:38:56,007 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:38:56,007 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:38:56,007 INFO L139 ounterexampleChecker]: Examining path program with hash 183396370, occurence #3 [2025-01-22 20:38:56,007 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:38:56,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-01-22 20:38:56,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:56,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2025-01-22 20:38:56,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:56,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-22 20:38:56,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:56,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-22 20:38:56,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:56,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-01-22 20:38:56,038 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2025-01-22 20:38:56,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2025-01-22 20:38:56,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:38:56,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2025-01-22 20:38:57,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:38:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2067843080, now seen corresponding path program 1 times [2025-01-22 20:38:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 20:38:57,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572587296] [2025-01-22 20:38:57,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:38:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:38:57,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-01-22 20:38:57,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-01-22 20:38:57,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:38:57,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-22 20:38:57,814 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-22 20:38:57,814 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-22 20:38:57,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-01-22 20:38:57,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:38:57,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2025-01-22 20:38:58,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2025-01-22 20:38:59,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:38:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash 491928245, now seen corresponding path program 1 times [2025-01-22 20:38:59,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 20:38:59,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178891823] [2025-01-22 20:38:59,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:38:59,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:38:59,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-22 20:38:59,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-22 20:38:59,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:38:59,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-22 20:38:59,217 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-22 20:38:59,217 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-01-22 20:38:59,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-22 20:38:59,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2025-01-22 20:38:59,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-22 20:38:59,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2025-01-22 20:38:59,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-01-22 20:38:59,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:38:59,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-22 20:38:59,217 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:38:59,217 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:38:59,217 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:38:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:38:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1573058847, now seen corresponding path program 9 times [2025-01-22 20:38:59,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:38:59,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279150027] [2025-01-22 20:38:59,218 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 20:38:59,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:38:59,220 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 14 equivalence classes. [2025-01-22 20:38:59,234 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) and asserted 85 of 85 statements. [2025-01-22 20:38:59,234 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2025-01-22 20:38:59,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:38:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 39 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-01-22 20:38:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:38:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279150027] [2025-01-22 20:38:59,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279150027] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:38:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545297028] [2025-01-22 20:38:59,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 20:38:59,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:38:59,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:38:59,551 INFO L229 MonitoredProcess]: Starting monitored process 10 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 20:38:59,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-22 20:38:59,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 14 equivalence classes. [2025-01-22 20:38:59,605 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) and asserted 85 of 85 statements. [2025-01-22 20:38:59,605 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2025-01-22 20:38:59,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:38:59,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-01-22 20:38:59,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:39:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 37 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:39:00,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:39:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 37 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:39:01,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545297028] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:39:01,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:39:01,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 40, 40] total 87 [2025-01-22 20:39:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210359297] [2025-01-22 20:39:01,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:39:01,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2025-01-22 20:39:01,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:39:01,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2025-01-22 20:39:01,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1768, Invalid=5888, Unknown=0, NotChecked=0, Total=7656 [2025-01-22 20:39:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:39:01,330 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:39:01,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.159090909090909) internal successors, (190), 87 states have internal predecessors, (190), 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 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2025-01-22 20:39:01,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2025-01-22 20:39:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2025-01-22 20:39:04,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-22 20:39:04,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:39:04,825 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:39:04,825 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:39:04,825 INFO L139 ounterexampleChecker]: Examining path program with hash -443115503, occurence #1 [2025-01-22 20:39:04,825 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:39:04,825 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:39:04,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:39:04,825 INFO L85 PathProgramCache]: Analyzing trace with hash -292897721, now seen corresponding path program 10 times [2025-01-22 20:39:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:39:04,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379042993] [2025-01-22 20:39:04,826 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 20:39:04,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:39:04,829 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 137 statements into 2 equivalence classes. [2025-01-22 20:39:04,840 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-22 20:39:04,840 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 20:39:04,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:39:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 43 proven. 839 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2025-01-22 20:39:05,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:39:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379042993] [2025-01-22 20:39:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379042993] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:39:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742448341] [2025-01-22 20:39:05,349 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 20:39:05,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:39:05,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:39:05,351 INFO L229 MonitoredProcess]: Starting monitored process 11 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 20:39:05,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-22 20:39:05,377 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 137 statements into 2 equivalence classes. [2025-01-22 20:39:05,408 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-22 20:39:05,408 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 20:39:05,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:39:05,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-01-22 20:39:05,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:39:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 3 proven. 1770 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-22 20:39:06,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:39:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 3 proven. 1770 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-22 20:39:09,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742448341] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:39:09,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:39:09,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 65, 65] total 134 [2025-01-22 20:39:09,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050379123] [2025-01-22 20:39:09,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:39:09,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2025-01-22 20:39:09,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:39:09,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2025-01-22 20:39:09,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3264, Invalid=14826, Unknown=0, NotChecked=0, Total=18090 [2025-01-22 20:39:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:39:09,161 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:39:09,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 135 states have (on average 2.1037037037037036) internal successors, (284), 134 states have internal predecessors, (284), 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 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2025-01-22 20:39:09,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:39:15,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2025-01-22 20:39:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2025-01-22 20:39:15,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-22 20:39:15,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-01-22 20:39:15,876 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:39:15,876 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:39:15,876 INFO L139 ounterexampleChecker]: Examining path program with hash 183396370, occurence #4 [2025-01-22 20:39:15,876 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:39:15,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 135 [2025-01-22 20:39:15,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:15,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2025-01-22 20:39:15,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:15,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 139 [2025-01-22 20:39:15,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:15,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2025-01-22 20:39:15,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:15,877 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 143 [2025-01-22 20:39:15,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:39:15,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2025-01-22 20:39:16,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-01-22 20:39:17,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:39:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash 245955822, now seen corresponding path program 1 times [2025-01-22 20:39:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 20:39:17,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034461615] [2025-01-22 20:39:17,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:39:17,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:39:17,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-22 20:39:17,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-22 20:39:17,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:39:17,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-22 20:39:17,939 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-22 20:39:17,939 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-22 20:39:17,939 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 147 [2025-01-22 20:39:17,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 20:39:17,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2025-01-22 20:39:18,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2025-01-22 20:39:19,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:39:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1609873835, now seen corresponding path program 1 times [2025-01-22 20:39:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 20:39:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696950516] [2025-01-22 20:39:19,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:39:19,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:39:20,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-22 20:39:20,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-22 20:39:20,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:39:20,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-22 20:39:20,017 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-22 20:39:20,017 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-22 20:39:20,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 154 [2025-01-22 20:39:20,017 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:20,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 156 [2025-01-22 20:39:20,017 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:20,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 158 [2025-01-22 20:39:20,017 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:20,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2025-01-22 20:39:20,017 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:39:20,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 162 [2025-01-22 20:39:20,017 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:39:20,017 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:39:20,017 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:39:20,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:39:20,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2126105647, now seen corresponding path program 11 times [2025-01-22 20:39:20,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:39:20,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421360282] [2025-01-22 20:39:20,018 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 20:39:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:39:20,024 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 165 statements into 35 equivalence classes. [2025-01-22 20:39:20,050 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) and asserted 165 of 165 statements. [2025-01-22 20:39:20,050 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) [2025-01-22 20:39:20,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:39:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2378 backedges. 48 proven. 1130 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2025-01-22 20:39:21,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:39:21,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421360282] [2025-01-22 20:39:21,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421360282] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:39:21,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351712577] [2025-01-22 20:39:21,686 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 20:39:21,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:39:21,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:39:21,688 INFO L229 MonitoredProcess]: Starting monitored process 12 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 20:39:21,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-22 20:39:21,713 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 165 statements into 35 equivalence classes. [2025-01-22 20:39:21,884 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) and asserted 165 of 165 statements. [2025-01-22 20:39:21,884 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) [2025-01-22 20:39:21,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:39:21,888 WARN L254 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 291 conjuncts are in the unsatisfiable core [2025-01-22 20:39:21,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:39:22,581 INFO L349 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2025-01-22 20:39:22,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 169 treesize of output 149 [2025-01-22 20:41:04,718 WARN L286 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 4419 DAG size of output: 4255 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-22 20:41:04,719 INFO L349 Elim1Store]: treesize reduction 328, result has 96.2 percent of original size [2025-01-22 20:41:04,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 47 select indices, 47 select index equivalence classes, 0 disjoint index pairs (out of 1081 index pairs), introduced 86 new quantified variables, introduced 1081 case distinctions, treesize of input 339 treesize of output 8526 [2025-01-22 20:44:14,631 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 20:44:14,631 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 20:44:14,632 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-22 20:44:14,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-22 20:44:14,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2025-01-22 20:44:14,838 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 20:44:14,839 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:140) 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.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.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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) 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) ... 68 more [2025-01-22 20:44:14,842 INFO L158 Benchmark]: Toolchain (without parser) took 422793.57ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 79.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2025-01-22 20:44:14,842 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.22ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 80.3MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 20:44:14,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.54ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 20:44:14,842 INFO L158 Benchmark]: Boogie Preprocessor took 12.57ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 77.4MB in the end (delta: 685.1kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 20:44:14,842 INFO L158 Benchmark]: RCFGBuilder took 184.79ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 68.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-01-22 20:44:14,842 INFO L158 Benchmark]: TraceAbstraction took 422563.25ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 95.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2025-01-22 20:44:14,843 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 0.22ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 80.3MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 19.54ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 12.57ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 77.4MB in the end (delta: 685.1kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 184.79ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 68.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 422563.25ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 95.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. 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...