/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 22:47:36,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 22:47:36,575 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 22:47:36,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 22:47:36,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 22:47:36,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 22:47:36,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 22:47:36,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 22:47:36,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 22:47:36,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 22:47:36,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 22:47:36,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 22:47:36,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 22:47:36,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 22:47:36,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 22:47:36,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 22:47:36,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 22:47:36,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 22:47:36,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 22:47:36,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-22 22:47:36,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 22:47:36,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 22:47:36,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 22:47:36,814 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 22:47:36,816 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 22:47:36,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl [2025-01-22 22:47:36,818 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl' [2025-01-22 22:47:36,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 22:47:36,836 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 22:47:36,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 22:47:36,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 22:47:36,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 22:47:36,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,853 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 22:47:36,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 22:47:36,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 22:47:36,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 22:47:36,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 22:47:36,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,863 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 22:47:36,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 22:47:36,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 22:47:36,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 22:47:36,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/1) ... [2025-01-22 22:47:36,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 22:47:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:47:36,890 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 22:47:36,897 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 22:47:36,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 22:47:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 22:47:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 22:47:36,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 22:47:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 22:47:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 22:47:36,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 22:47:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 22:47:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 22:47:36,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-01-22 22:47:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-22 22:47:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-22 22:47:36,917 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 22:47:36,954 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 22:47:36,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 22:47:37,025 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 22:47:37,026 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 22:47:37,057 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 22:47:37,057 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 22:47:37,057 INFO L201 PluginConnector]: Adding new model prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 10:47:37 BoogieIcfgContainer [2025-01-22 22:47:37,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 22:47:37,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 22:47:37,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 22:47:37,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 22:47:37,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:47:36" (1/2) ... [2025-01-22 22:47:37,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23933145 and model type prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 10:47:37, skipping insertion in model container [2025-01-22 22:47:37,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 10:47:37" (2/2) ... [2025-01-22 22:47:37,064 INFO L128 eAbstractionObserver]: Analyzing ICFG prod-cons.wvr.bpl [2025-01-22 22:47:37,072 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 22:47:37,073 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod-cons.wvr.bpl that has 4 procedures, 21 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 22:47:37,073 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 22:47:37,102 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-22 22:47:37,142 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 22:47:37,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 22:47:37,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:47:37,144 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 22:47:37,146 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 22:47:37,189 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 22:47:37,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 22:47:37,204 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4868b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 22:47:37,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-22 22:47:37,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:47:37,439 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:47:37,440 INFO L139 ounterexampleChecker]: Examining path program with hash -712529380, occurence #1 [2025-01-22 22:47:37,440 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:47:37,440 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:47:37,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1337040355, now seen corresponding path program 1 times [2025-01-22 22:47:37,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:47:37,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094655729] [2025-01-22 22:47:37,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:47:37,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:37,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-22 22:47:37,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 22:47:37,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:47:37,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:37,559 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 22:47:37,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:47:37,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094655729] [2025-01-22 22:47:37,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094655729] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:47:37,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:47:37,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 22:47:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201560975] [2025-01-22 22:47:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:47:37,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 22:47:37,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:47:37,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 22:47:37,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 22:47:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:37,594 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:47:37,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 22:47:37,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:37,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 22:47:37,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:47:37,678 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:47:37,678 INFO L139 ounterexampleChecker]: Examining path program with hash 428453395, occurence #1 [2025-01-22 22:47:37,678 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:47:37,679 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:47:37,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:37,679 INFO L85 PathProgramCache]: Analyzing trace with hash 819026840, now seen corresponding path program 1 times [2025-01-22 22:47:37,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:47:37,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696236048] [2025-01-22 22:47:37,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:47:37,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:37,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-22 22:47:37,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-22 22:47:37,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:47:37,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:37,752 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 22:47:37,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:47:37,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696236048] [2025-01-22 22:47:37,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696236048] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:47:37,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:47:37,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 22:47:37,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3148243] [2025-01-22 22:47:37,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:47:37,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 22:47:37,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:47:37,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 22:47:37,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-22 22:47:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:37,754 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:47:37,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:47:37,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:37,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:37,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:37,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-22 22:47:37,933 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:47:37,933 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:47:37,933 INFO L139 ounterexampleChecker]: Examining path program with hash 448652743, occurence #1 [2025-01-22 22:47:37,933 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:47:37,933 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:47:37,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash -207516804, now seen corresponding path program 1 times [2025-01-22 22:47:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:47:37,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754431791] [2025-01-22 22:47:37,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:47:37,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:37,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-22 22:47:37,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-22 22:47:37,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:47:37,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:38,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:47:38,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754431791] [2025-01-22 22:47:38,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754431791] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:47:38,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407276439] [2025-01-22 22:47:38,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:47:38,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:47:38,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:47:38,141 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 22:47:38,142 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 22:47:38,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-22 22:47:38,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-22 22:47:38,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:47:38,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:38,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-22 22:47:38,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:47:38,283 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 11 treesize of output 7 [2025-01-22 22:47:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:38,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:47:38,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:38,407 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 15 treesize of output 19 [2025-01-22 22:47:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:38,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407276439] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:47:38,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:47:38,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2025-01-22 22:47:38,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390156575] [2025-01-22 22:47:38,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:47:38,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-22 22:47:38,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:47:38,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-22 22:47:38,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2025-01-22 22:47:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:38,472 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:47:38,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 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 22:47:38,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:38,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:38,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:47:38,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-22 22:47:39,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:47:39,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:47:39,165 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:47:39,165 INFO L139 ounterexampleChecker]: Examining path program with hash 821426540, occurence #1 [2025-01-22 22:47:39,165 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:47:39,166 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:47:39,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1134608288, now seen corresponding path program 2 times [2025-01-22 22:47:39,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:47:39,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808567670] [2025-01-22 22:47:39,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 22:47:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:39,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-01-22 22:47:39,182 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 22:47:39,182 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 22:47:39,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:39,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:39,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:47:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808567670] [2025-01-22 22:47:39,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808567670] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:47:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493988253] [2025-01-22 22:47:39,397 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 22:47:39,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:47:39,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:47:39,399 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 22:47:39,400 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 22:47:39,419 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-01-22 22:47:39,427 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 22:47:39,427 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 22:47:39,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:39,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-22 22:47:39,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:47:39,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:39,658 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 25 treesize of output 13 [2025-01-22 22:47:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:39,708 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:47:39,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:39,905 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 51 [2025-01-22 22:47:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:39,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493988253] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:47:39,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:47:39,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2025-01-22 22:47:39,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466731452] [2025-01-22 22:47:39,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:47:39,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-22 22:47:39,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:47:39,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-22 22:47:39,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2025-01-22 22:47:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:39,992 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:47:39,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 28 states have internal predecessors, (57), 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 22:47:39,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:39,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:39,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:47:39,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:47:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:47:41,642 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 22:47:41,840 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 22:47:41,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:47:41,840 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:47:41,840 INFO L139 ounterexampleChecker]: Examining path program with hash 821426540, occurence #2 [2025-01-22 22:47:41,840 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 22:47:41,840 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-22 22:47:41,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:41,858 INFO L85 PathProgramCache]: Analyzing trace with hash 992795612, now seen corresponding path program 1 times [2025-01-22 22:47:41,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 22:47:41,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9688759] [2025-01-22 22:47:41,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:47:41,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:41,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-22 22:47:41,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-22 22:47:41,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:47:41,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:42,187 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-22 22:47:42,188 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-22 22:47:42,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9688759] [2025-01-22 22:47:42,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9688759] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:47:42,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [441417912] [2025-01-22 22:47:42,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:47:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:42,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-22 22:47:42,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-22 22:47:42,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:47:42,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:42,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-22 22:47:42,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:47:42,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:42,743 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 22 [2025-01-22 22:47:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:42,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [441417912] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:47:42,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-22 22:47:42,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16] total 25 [2025-01-22 22:47:42,768 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-22 22:47:42,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-01-22 22:47:42,768 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 22:47:42,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-22 22:47:42,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:47:42,768 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 22:47:42,768 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:47:42,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1687435560, now seen corresponding path program 3 times [2025-01-22 22:47:42,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:47:42,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538369233] [2025-01-22 22:47:42,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 22:47:42,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:42,773 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 36 statements into 5 equivalence classes. [2025-01-22 22:47:42,785 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 36 of 36 statements. [2025-01-22 22:47:42,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 22:47:42,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:43,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:47:43,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538369233] [2025-01-22 22:47:43,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538369233] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:47:43,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759672989] [2025-01-22 22:47:43,185 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 22:47:43,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:47:43,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:47:43,189 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 22:47:43,190 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 22:47:43,217 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 36 statements into 5 equivalence classes. [2025-01-22 22:47:43,227 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 36 of 36 statements. [2025-01-22 22:47:43,227 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 22:47:43,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:43,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-01-22 22:47:43,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:47:43,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:43,715 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 22 [2025-01-22 22:47:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:43,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:47:44,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:44,322 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 8 new quantified variables, introduced 28 case distinctions, treesize of input 51 treesize of output 175 [2025-01-22 22:47:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759672989] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:47:45,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:47:45,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 52 [2025-01-22 22:47:45,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252111722] [2025-01-22 22:47:45,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:47:45,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-01-22 22:47:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:47:45,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-01-22 22:47:45,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=2427, Unknown=0, NotChecked=0, Total=2756 [2025-01-22 22:47:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:45,744 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:47:45,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.7547169811320755) internal successors, (93), 52 states have internal predecessors, (93), 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 22:47:45,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:45,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:47:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:47:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:47:51,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:47:51,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:47:51,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:47:51,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:47:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2025-01-22 22:47:51,152 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 22:47:51,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:47:51,347 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:47:51,347 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:47:51,347 INFO L139 ounterexampleChecker]: Examining path program with hash 1178811533, occurence #1 [2025-01-22 22:47:51,347 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:47:51,347 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:47:51,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:47:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2023548820, now seen corresponding path program 4 times [2025-01-22 22:47:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:47:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755234780] [2025-01-22 22:47:51,347 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 22:47:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:47:51,350 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 54 statements into 2 equivalence classes. [2025-01-22 22:47:51,360 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-22 22:47:51,361 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 22:47:51,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-01-22 22:47:51,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:47:51,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755234780] [2025-01-22 22:47:51,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755234780] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:47:51,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241858807] [2025-01-22 22:47:51,893 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 22:47:51,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:47:51,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:47:51,895 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 22:47:51,896 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 22:47:51,917 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 54 statements into 2 equivalence classes. [2025-01-22 22:47:51,932 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-22 22:47:51,933 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 22:47:51,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:47:51,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 58 conjuncts are in the unsatisfiable core [2025-01-22 22:47:51,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:47:53,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:53,156 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 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 34 [2025-01-22 22:47:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:47:53,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:47:54,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:47:54,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 87 treesize of output 511 [2025-01-22 22:48:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:48:14,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241858807] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:48:14,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:48:14,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 31, 31] total 73 [2025-01-22 22:48:14,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703682629] [2025-01-22 22:48:14,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:48:14,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2025-01-22 22:48:14,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:48:14,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2025-01-22 22:48:14,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=4831, Unknown=0, NotChecked=0, Total=5402 [2025-01-22 22:48:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:48:14,858 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:48:14,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 1.7027027027027026) internal successors, (126), 73 states have internal predecessors, (126), 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 22:48:14,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:48:14,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:48:14,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:48:14,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:48:14,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2025-01-22 22:48:14,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:48:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:48:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:48:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:48:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:48:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2025-01-22 22:48:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2025-01-22 22:48:29,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-22 22:48:29,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:48:29,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:48:29,706 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:48:29,707 INFO L139 ounterexampleChecker]: Examining path program with hash -254438904, occurence #1 [2025-01-22 22:48:29,707 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:48:29,707 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:48:29,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:48:29,707 INFO L85 PathProgramCache]: Analyzing trace with hash -219732665, now seen corresponding path program 5 times [2025-01-22 22:48:29,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:48:29,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388255025] [2025-01-22 22:48:29,707 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 22:48:29,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:48:29,711 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 10 equivalence classes. [2025-01-22 22:48:29,736 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 69 of 69 statements. [2025-01-22 22:48:29,736 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-01-22 22:48:29,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:48:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 45 proven. 77 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-01-22 22:48:30,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:48:30,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388255025] [2025-01-22 22:48:30,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388255025] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:48:30,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664678205] [2025-01-22 22:48:30,548 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 22:48:30,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:48:30,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:48:30,550 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 22:48:30,550 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 22:48:30,570 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 10 equivalence classes. [2025-01-22 22:48:30,589 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 69 of 69 statements. [2025-01-22 22:48:30,589 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-01-22 22:48:30,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:48:30,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 75 conjuncts are in the unsatisfiable core [2025-01-22 22:48:30,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:48:32,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:48:32,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 42 [2025-01-22 22:48:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:48:32,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:48:35,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:48:35,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 111 treesize of output 835 [2025-01-22 22:53:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 1 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:53:44,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664678205] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:53:44,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:53:44,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 40, 40] total 99 [2025-01-22 22:53:44,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392954608] [2025-01-22 22:53:44,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:53:44,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2025-01-22 22:53:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:53:44,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2025-01-22 22:53:44,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=984, Invalid=8916, Unknown=0, NotChecked=0, Total=9900 [2025-01-22 22:53:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:53:44,592 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:53:44,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 1.69) internal successors, (169), 99 states have internal predecessors, (169), 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 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2025-01-22 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2025-01-22 22:53:44,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2025-01-22 22:55:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 521 states. [2025-01-22 22:55:11,149 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 22:55:11,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:55:11,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 22:55:11,344 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:55:11,344 INFO L139 ounterexampleChecker]: Examining path program with hash -254438904, occurence #2 [2025-01-22 22:55:11,344 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 22:55:11,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-22 22:55:11,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:55:11,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-22 22:55:11,344 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:55:11,344 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-22 22:55:11,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:55:11,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1782987283, now seen corresponding path program 1 times [2025-01-22 22:55:11,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 22:55:11,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425839775] [2025-01-22 22:55:11,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:55:11,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:55:11,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-22 22:55:11,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-22 22:55:11,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:55:11,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:55:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-01-22 22:55:11,402 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-22 22:55:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425839775] [2025-01-22 22:55:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425839775] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:55:11,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:55:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-22 22:55:11,404 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 57. Constructing proof automaton... [2025-01-22 22:55:11,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:55:11,405 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-22 22:55:11,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 22:55:11,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-01-22 22:55:11,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-22 22:55:11,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-22 22:55:11,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:55:11,406 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:55:11,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 22:55:11,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:55:11,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:55:11,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:55:11,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2025-01-22 22:55:11,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2025-01-22 22:55:11,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2025-01-22 22:55:11,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 521 states. [2025-01-22 22:55:11,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:55:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:55:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:55:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-22 22:55:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2025-01-22 22:55:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2025-01-22 22:55:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2025-01-22 22:55:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 557 states. [2025-01-22 22:55:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:55:27,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2025-01-22 22:55:27,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-01-22 22:55:27,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-22 22:55:27,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-22 22:55:27,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-22 22:55:27,231 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2025-01-22 22:55:27,234 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-22 22:55:27,234 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-22 22:55:27,243 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 22:55:27,244 INFO L201 PluginConnector]: Adding new model prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.01 10:55:27 BasicIcfg [2025-01-22 22:55:27,244 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-22 22:55:27,245 INFO L158 Benchmark]: Toolchain (without parser) took 470408.24ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 79.1MB in the beginning and 591.1MB in the end (delta: -511.9MB). Peak memory consumption was 821.0MB. Max. memory is 16.0GB. [2025-01-22 22:55:27,245 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 22:55:27,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.10ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 22:55:27,245 INFO L158 Benchmark]: Boogie Preprocessor took 11.35ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 77.2MB in the end (delta: 707.8kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 22:55:27,245 INFO L158 Benchmark]: RCFGBuilder took 190.91ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 95.8MB in the end (delta: -18.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.0GB. [2025-01-22 22:55:27,245 INFO L158 Benchmark]: TraceAbstraction took 470185.35ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 95.1MB in the beginning and 591.1MB in the end (delta: -495.9MB). Peak memory consumption was 832.8MB. Max. memory is 16.0GB. [2025-01-22 22:55:27,246 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 0.19ms. Allocated memory is still 117.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.10ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 11.35ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 77.2MB in the end (delta: 707.8kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 190.91ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 95.8MB in the end (delta: -18.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.0GB. * TraceAbstraction took 470185.35ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 95.1MB in the beginning and 591.1MB in the end (delta: -495.9MB). Peak memory consumption was 832.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7809, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 1492, dependent conditional: 1485, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6676, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 359, dependent conditional: 352, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6676, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 359, dependent conditional: 352, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9970, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 3653, dependent conditional: 3646, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9970, independent: 6317, independent conditional: 807, independent unconditional: 5510, dependent: 3653, dependent conditional: 756, dependent unconditional: 2897, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9970, independent: 6317, independent conditional: 807, independent unconditional: 5510, dependent: 3653, dependent conditional: 756, dependent unconditional: 2897, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 905, independent: 650, independent conditional: 403, independent unconditional: 247, dependent: 255, dependent conditional: 246, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 905, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 661, independent: 406, independent conditional: 403, independent unconditional: 3, dependent: 255, dependent conditional: 246, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 661, independent: 406, independent conditional: 403, independent unconditional: 3, dependent: 255, dependent conditional: 246, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4127, independent: 2245, independent conditional: 2202, independent unconditional: 44, dependent: 1881, dependent conditional: 1714, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 9970, independent: 5667, independent conditional: 404, independent unconditional: 5263, dependent: 3398, dependent conditional: 510, dependent unconditional: 2888, unknown: 905, unknown conditional: 649, unknown unconditional: 256] , Statistics on independence cache: Total cache size (in pairs): 907, Positive cache size: 652, Positive conditional cache size: 405, Positive unconditional cache size: 247, Negative cache size: 255, Negative conditional cache size: 246, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8108, Maximal queried relation: 8, Independence queries for same thread: 1133, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 77, Number of trivial persistent sets: 65, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 299, independent: 292, independent conditional: 0, independent unconditional: 292, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7809, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 1492, dependent conditional: 1485, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6676, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 359, dependent conditional: 352, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6676, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 359, dependent conditional: 352, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9970, independent: 6317, independent conditional: 6025, independent unconditional: 292, dependent: 3653, dependent conditional: 3646, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9970, independent: 6317, independent conditional: 807, independent unconditional: 5510, dependent: 3653, dependent conditional: 756, dependent unconditional: 2897, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9970, independent: 6317, independent conditional: 807, independent unconditional: 5510, dependent: 3653, dependent conditional: 756, dependent unconditional: 2897, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 905, independent: 650, independent conditional: 403, independent unconditional: 247, dependent: 255, dependent conditional: 246, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 905, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 661, independent: 406, independent conditional: 403, independent unconditional: 3, dependent: 255, dependent conditional: 246, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 661, independent: 406, independent conditional: 403, independent unconditional: 3, dependent: 255, dependent conditional: 246, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4127, independent: 2245, independent conditional: 2202, independent unconditional: 44, dependent: 1881, dependent conditional: 1714, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 9970, independent: 5667, independent conditional: 404, independent unconditional: 5263, dependent: 3398, dependent conditional: 510, dependent unconditional: 2888, unknown: 905, unknown conditional: 649, unknown unconditional: 256] , Statistics on independence cache: Total cache size (in pairs): 907, Positive cache size: 652, Positive conditional cache size: 405, Positive unconditional cache size: 247, Negative cache size: 255, Negative conditional cache size: 246, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8108, Maximal queried relation: 8, Independence queries for same thread: 1133 - PositiveResult [Line: 64]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 34 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 470.1s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 125.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 937, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 342.6s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 613 ConstructedInterpolants, 0 QuantifiedInterpolants, 15491 SizeOfPredicates, 48 NumberOfNonLiveVariables, 571 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 173/996 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 1, ConComChecker Statistics: CheckTime [ms]: 986, ConditionCalculationTime [ms]: 24, ConditionCalculations: 5, QuantifiedConditions: 0, TraceChecks: 2, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 1 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-22 22:55:27,456 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2025-01-22 22:55:27,604 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 137 Received shutdown request...