/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-a343466-m [2025-01-29 22:12:14,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-29 22:12:14,563 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 [2025-01-29 22:12:14,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-29 22:12:14,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-29 22:12:14,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-29 22:12:14,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-29 22:12:14,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-29 22:12:14,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-29 22:12:14,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-29 22:12:14,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-29 22:12:14,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-29 22:12:14,586 INFO L153 SettingsManager]: * Use SBE=true [2025-01-29 22:12:14,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-29 22:12:14,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-29 22:12:14,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-29 22:12:14,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-29 22:12:14,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-29 22:12:14,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2025-01-29 22:12:14,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-29 22:12:14,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-29 22:12:14,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-29 22:12:14,825 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-29 22:12:14,826 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-29 22:12:14,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl [2025-01-29 22:12:14,828 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl' [2025-01-29 22:12:14,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-29 22:12:14,847 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-29 22:12:14,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-29 22:12:14,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-29 22:12:14,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-29 22:12:14,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,863 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-29 22:12:14,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-29 22:12:14,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-29 22:12:14,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-29 22:12:14,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-29 22:12:14,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,875 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-29 22:12:14,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-29 22:12:14,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-29 22:12:14,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-29 22:12:14,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/1) ... [2025-01-29 22:12:14,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-29 22:12:14,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:14,912 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) [2025-01-29 22:12:14,917 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 [2025-01-29 22:12:14,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-29 22:12:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-29 22:12:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-29 22:12:14,935 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-29 22:12:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-29 22:12:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-29 22:12:14,935 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-29 22:12:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-29 22:12:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-29 22:12:14,936 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-29 22:12:14,970 INFO L234 CfgBuilder]: Building ICFG [2025-01-29 22:12:14,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-29 22:12:15,035 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-29 22:12:15,035 INFO L283 CfgBuilder]: Performing block encoding [2025-01-29 22:12:15,062 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-29 22:12:15,063 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-29 22:12:15,063 INFO L201 PluginConnector]: Adding new model unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:12:15 BoogieIcfgContainer [2025-01-29 22:12:15,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-29 22:12:15,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-29 22:12:15,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-29 22:12:15,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-29 22:12:15,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 10:12:14" (1/2) ... [2025-01-29 22:12:15,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36216387 and model type unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:12:15, skipping insertion in model container [2025-01-29 22:12:15,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:12:15" (2/2) ... [2025-01-29 22:12:15,072 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.bpl [2025-01-29 22:12:15,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-29 22:12:15,084 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-2.wvr.bpl that has 3 procedures, 16 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-29 22:12:15,084 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-29 22:12:15,122 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-29 22:12:15,154 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-29 22:12:15,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-29 22:12:15,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:15,157 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) [2025-01-29 22:12:15,158 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 [2025-01-29 22:12:15,203 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-29 22:12:15,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-29 22:12:15,230 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;@4bc9ce13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-29 22:12:15,230 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-29 22:12:15,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:15,297 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:15,297 INFO L139 ounterexampleChecker]: Examining path program with hash -342544275, occurence #1 [2025-01-29 22:12:15,297 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-29 22:12:15,298 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:15,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:15,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1104123591, now seen corresponding path program 1 times [2025-01-29 22:12:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009453947] [2025-01-29 22:12:15,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 22:12:15,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:15,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-29 22:12:15,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-29 22:12:15,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:15,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:15,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:15,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009453947] [2025-01-29 22:12:15,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009453947] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 22:12:15,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 22:12:15,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-29 22:12:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852612214] [2025-01-29 22:12:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 22:12:15,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-29 22:12:15,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:15,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-29 22:12:15,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-29 22:12:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,444 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:15,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 22:12:15,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-29 22:12:15,469 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:15,469 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:15,469 INFO L139 ounterexampleChecker]: Examining path program with hash -342544275, occurence #2 [2025-01-29 22:12:15,469 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:15,469 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-29 22:12:15,470 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:15,470 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-29 22:12:15,470 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:15,470 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:15,470 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:15,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash 158535069, now seen corresponding path program 1 times [2025-01-29 22:12:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985368570] [2025-01-29 22:12:15,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 22:12:15,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:15,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-29 22:12:15,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-29 22:12:15,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:15,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:15,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985368570] [2025-01-29 22:12:15,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985368570] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 22:12:15,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 22:12:15,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-29 22:12:15,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432338089] [2025-01-29 22:12:15,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 22:12:15,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-29 22:12:15,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:15,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-29 22:12:15,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-29 22:12:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,556 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:15,557 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) [2025-01-29 22:12:15,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:15,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-29 22:12:15,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:15,609 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:15,609 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #1 [2025-01-29 22:12:15,609 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-29 22:12:15,609 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:15,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:15,610 INFO L85 PathProgramCache]: Analyzing trace with hash -163951338, now seen corresponding path program 1 times [2025-01-29 22:12:15,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:15,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382290301] [2025-01-29 22:12:15,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 22:12:15,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:15,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-29 22:12:15,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-29 22:12:15,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:15,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382290301] [2025-01-29 22:12:15,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382290301] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 22:12:15,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 22:12:15,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-29 22:12:15,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403795695] [2025-01-29 22:12:15,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 22:12:15,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-29 22:12:15,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:15,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-29 22:12:15,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-29 22:12:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,671 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:15,671 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) [2025-01-29 22:12:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:15,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-29 22:12:15,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:15,714 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:15,714 INFO L139 ounterexampleChecker]: Examining path program with hash 1040328539, occurence #1 [2025-01-29 22:12:15,714 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-29 22:12:15,714 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:15,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:15,714 INFO L85 PathProgramCache]: Analyzing trace with hash -721673892, now seen corresponding path program 1 times [2025-01-29 22:12:15,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:15,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089376886] [2025-01-29 22:12:15,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 22:12:15,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:15,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-29 22:12:15,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-29 22:12:15,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:15,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:15,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:15,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089376886] [2025-01-29 22:12:15,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089376886] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:15,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534415357] [2025-01-29 22:12:15,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 22:12:15,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:15,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:15,781 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) [2025-01-29 22:12:15,782 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 [2025-01-29 22:12:15,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-29 22:12:15,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-29 22:12:15,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:15,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:15,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-29 22:12:15,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:15,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:15,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534415357] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:15,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:15,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-01-29 22:12:15,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024003276] [2025-01-29 22:12:15,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:15,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-29 22:12:15,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:15,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-29 22:12:15,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-29 22:12:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,933 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:15,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2025-01-29 22:12:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:15,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-29 22:12:16,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:16,165 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:16,165 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:16,165 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #2 [2025-01-29 22:12:16,165 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:16,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-29 22:12:16,165 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:16,165 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:16,165 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:16,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1192912557, now seen corresponding path program 2 times [2025-01-29 22:12:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:16,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733350098] [2025-01-29 22:12:16,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 22:12:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:16,171 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-01-29 22:12:16,176 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-01-29 22:12:16,177 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 22:12:16,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:16,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:16,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733350098] [2025-01-29 22:12:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733350098] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:16,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253567205] [2025-01-29 22:12:16,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 22:12:16,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:16,240 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) [2025-01-29 22:12:16,242 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 [2025-01-29 22:12:16,257 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-01-29 22:12:16,263 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-01-29 22:12:16,263 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 22:12:16,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:16,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-29 22:12:16,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:16,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 22:12:16,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2025-01-29 22:12:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:16,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:16,381 INFO L349 Elim1Store]: treesize reduction 10, result has 79.6 percent of original size [2025-01-29 22:12:16,381 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 11 treesize of output 50 [2025-01-29 22:12:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:16,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253567205] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:16,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:16,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-01-29 22:12:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365234171] [2025-01-29 22:12:16,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:16,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-29 22:12:16,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:16,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-29 22:12:16,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-29 22:12:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:16,453 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:16,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 22:12:16,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:16,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-29 22:12:16,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:16,701 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:16,701 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:16,701 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #3 [2025-01-29 22:12:16,701 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:16,701 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-29 22:12:16,701 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:16,701 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-29 22:12:16,701 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:16,701 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:16,701 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:16,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1797698820, now seen corresponding path program 3 times [2025-01-29 22:12:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:16,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059116749] [2025-01-29 22:12:16,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 22:12:16,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:16,705 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 2 equivalence classes. [2025-01-29 22:12:16,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-01-29 22:12:16,708 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-29 22:12:16,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:16,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:16,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059116749] [2025-01-29 22:12:16,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059116749] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:16,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923116] [2025-01-29 22:12:16,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 22:12:16,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:16,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:16,772 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) [2025-01-29 22:12:16,774 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 [2025-01-29 22:12:16,791 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 2 equivalence classes. [2025-01-29 22:12:16,799 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-01-29 22:12:16,799 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-29 22:12:16,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:16,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-29 22:12:16,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:16,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:16,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923116] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:16,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:16,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2025-01-29 22:12:16,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802995499] [2025-01-29 22:12:16,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:16,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-29 22:12:16,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:16,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-29 22:12:16,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-01-29 22:12:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:16,879 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:16,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 22:12:16,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:16,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:16,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-29 22:12:17,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:17,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:17,181 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:17,181 INFO L139 ounterexampleChecker]: Examining path program with hash 1040328539, occurence #2 [2025-01-29 22:12:17,181 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:17,181 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-29 22:12:17,181 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:17,181 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:17,181 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:17,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1740266687, now seen corresponding path program 4 times [2025-01-29 22:12:17,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656512965] [2025-01-29 22:12:17,182 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 22:12:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:17,186 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 15 statements into 2 equivalence classes. [2025-01-29 22:12:17,191 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-29 22:12:17,191 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 22:12:17,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:17,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:17,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656512965] [2025-01-29 22:12:17,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656512965] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:17,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293297989] [2025-01-29 22:12:17,258 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 22:12:17,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:17,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:17,260 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) [2025-01-29 22:12:17,261 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 [2025-01-29 22:12:17,276 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 15 statements into 2 equivalence classes. [2025-01-29 22:12:17,284 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-29 22:12:17,284 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 22:12:17,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:17,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-29 22:12:17,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:17,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:17,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293297989] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:17,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:17,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2025-01-29 22:12:17,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535943989] [2025-01-29 22:12:17,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:17,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-29 22:12:17,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:17,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-29 22:12:17,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-01-29 22:12:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:17,409 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:17,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 22:12:17,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:17,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:17,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:17,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:17,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:17,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:17,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:17,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-29 22:12:17,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:17,678 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:17,678 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:17,678 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #4 [2025-01-29 22:12:17,678 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:17,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-29 22:12:17,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:17,678 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:17,678 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:17,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2112801360, now seen corresponding path program 5 times [2025-01-29 22:12:17,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:17,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552572551] [2025-01-29 22:12:17,679 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-29 22:12:17,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:17,682 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 16 statements into 3 equivalence classes. [2025-01-29 22:12:17,686 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 16 of 16 statements. [2025-01-29 22:12:17,686 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-29 22:12:17,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:17,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:17,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552572551] [2025-01-29 22:12:17,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552572551] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:17,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437201004] [2025-01-29 22:12:17,731 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-29 22:12:17,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:17,732 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) [2025-01-29 22:12:17,734 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 [2025-01-29 22:12:17,748 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 16 statements into 3 equivalence classes. [2025-01-29 22:12:17,755 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 16 of 16 statements. [2025-01-29 22:12:17,755 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-29 22:12:17,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:17,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-29 22:12:17,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:17,833 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:17,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:17,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437201004] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:17,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:17,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 15 [2025-01-29 22:12:17,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924203053] [2025-01-29 22:12:17,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:17,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-29 22:12:17,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:17,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-29 22:12:17,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2025-01-29 22:12:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:17,931 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:17,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:12:18,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-29 22:12:18,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:18,329 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:18,329 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:18,329 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #5 [2025-01-29 22:12:18,329 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:18,329 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-29 22:12:18,329 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:18,329 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-29 22:12:18,329 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:18,329 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:18,330 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:18,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:18,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1895184799, now seen corresponding path program 6 times [2025-01-29 22:12:18,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:18,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466791385] [2025-01-29 22:12:18,330 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-29 22:12:18,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:18,333 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 3 equivalence classes. [2025-01-29 22:12:18,335 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 17 of 17 statements. [2025-01-29 22:12:18,336 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-01-29 22:12:18,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:18,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:18,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466791385] [2025-01-29 22:12:18,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466791385] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:18,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460523737] [2025-01-29 22:12:18,416 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-29 22:12:18,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:18,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:18,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:12:18,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-29 22:12:18,437 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 3 equivalence classes. [2025-01-29 22:12:18,445 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 17 of 17 statements. [2025-01-29 22:12:18,445 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-01-29 22:12:18,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:18,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-29 22:12:18,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:18,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 22:12:18,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2025-01-29 22:12:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:18,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:18,771 INFO L349 Elim1Store]: treesize reduction 20, result has 91.1 percent of original size [2025-01-29 22:12:18,772 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 14 new quantified variables, introduced 28 case distinctions, treesize of input 19 treesize of output 232 [2025-01-29 22:12:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:19,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460523737] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:19,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:19,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 7] total 14 [2025-01-29 22:12:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246434556] [2025-01-29 22:12:19,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:19,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-29 22:12:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:19,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-29 22:12:19,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-01-29 22:12:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:19,545 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:19,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 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) [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:12:19,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:12:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:19,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-29 22:12:19,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:19,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:19,832 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:19,832 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #6 [2025-01-29 22:12:19,832 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:19,832 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-29 22:12:19,832 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:19,832 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-29 22:12:19,832 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:19,832 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:19,832 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:19,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:19,832 INFO L85 PathProgramCache]: Analyzing trace with hash -555961296, now seen corresponding path program 7 times [2025-01-29 22:12:19,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:19,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715927229] [2025-01-29 22:12:19,833 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-29 22:12:19,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:19,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-29 22:12:19,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-29 22:12:19,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:19,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:19,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:19,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715927229] [2025-01-29 22:12:19,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715927229] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:19,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215854114] [2025-01-29 22:12:19,905 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-29 22:12:19,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:19,907 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:12:19,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-29 22:12:19,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-29 22:12:19,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-29 22:12:19,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:12:19,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:19,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-29 22:12:19,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:19,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:20,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215854114] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:20,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:20,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2025-01-29 22:12:20,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384073849] [2025-01-29 22:12:20,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:20,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-29 22:12:20,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:20,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-29 22:12:20,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2025-01-29 22:12:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:20,018 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:20,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 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) [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:20,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-29 22:12:20,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:20,360 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:20,360 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:20,360 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #7 [2025-01-29 22:12:20,360 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:20,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-29 22:12:20,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:20,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-29 22:12:20,360 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:20,360 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:20,360 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:20,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1181611134, now seen corresponding path program 8 times [2025-01-29 22:12:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:20,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794685274] [2025-01-29 22:12:20,361 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 22:12:20,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:20,363 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-01-29 22:12:20,365 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-01-29 22:12:20,365 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 22:12:20,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-29 22:12:20,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794685274] [2025-01-29 22:12:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794685274] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061870493] [2025-01-29 22:12:20,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 22:12:20,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:20,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:20,426 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:12:20,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-29 22:12:20,444 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-01-29 22:12:20,452 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-01-29 22:12:20,452 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 22:12:20,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:20,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-29 22:12:20,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:20,571 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:20,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:20,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061870493] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:20,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:20,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 8] total 21 [2025-01-29 22:12:20,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553245494] [2025-01-29 22:12:20,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:20,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-29 22:12:20,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:20,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-29 22:12:20,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2025-01-29 22:12:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:20,721 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:20,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 21 states have internal predecessors, (45), 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) [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:20,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:20,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:20,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:20,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:21,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-29 22:12:21,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-29 22:12:21,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:21,229 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:21,229 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:21,229 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #8 [2025-01-29 22:12:21,229 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:21,229 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-29 22:12:21,229 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:21,229 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-29 22:12:21,229 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:21,229 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:21,229 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:21,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1447354707, now seen corresponding path program 9 times [2025-01-29 22:12:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:21,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027482474] [2025-01-29 22:12:21,230 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 22:12:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:21,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 20 statements into 4 equivalence classes. [2025-01-29 22:12:21,245 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 20 of 20 statements. [2025-01-29 22:12:21,246 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-29 22:12:21,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:21,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:21,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027482474] [2025-01-29 22:12:21,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027482474] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:21,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041059286] [2025-01-29 22:12:21,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 22:12:21,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:21,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:21,318 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:12:21,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-29 22:12:21,334 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 20 statements into 4 equivalence classes. [2025-01-29 22:12:21,341 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 20 of 20 statements. [2025-01-29 22:12:21,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-29 22:12:21,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:21,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-29 22:12:21,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:21,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 22:12:21,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2025-01-29 22:12:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:21,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:22,226 INFO L349 Elim1Store]: treesize reduction 30, result has 94.3 percent of original size [2025-01-29 22:12:22,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 22 new quantified variables, introduced 66 case distinctions, treesize of input 27 treesize of output 542 [2025-01-29 22:12:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:26,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041059286] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:26,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:26,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 10] total 20 [2025-01-29 22:12:26,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291687443] [2025-01-29 22:12:26,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:26,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-29 22:12:26,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:26,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-29 22:12:26,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2025-01-29 22:12:26,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:26,921 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:26,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 20 states have internal predecessors, (38), 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) [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-29 22:12:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-29 22:12:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:12:27,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-29 22:12:27,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:27,251 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:27,251 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:27,251 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #9 [2025-01-29 22:12:27,251 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:27,251 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-29 22:12:27,251 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:27,251 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-29 22:12:27,251 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:27,251 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:27,251 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:27,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:27,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1222993229, now seen corresponding path program 10 times [2025-01-29 22:12:27,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:27,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238697022] [2025-01-29 22:12:27,252 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 22:12:27,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:27,254 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 22 statements into 2 equivalence classes. [2025-01-29 22:12:27,258 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-29 22:12:27,258 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 22:12:27,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:27,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:27,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238697022] [2025-01-29 22:12:27,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238697022] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:27,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545236700] [2025-01-29 22:12:27,345 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 22:12:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:27,347 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:12:27,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-29 22:12:27,365 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 22 statements into 2 equivalence classes. [2025-01-29 22:12:27,373 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-29 22:12:27,373 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 22:12:27,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:27,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-29 22:12:27,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-29 22:12:27,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-29 22:12:27,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545236700] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:12:27,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:12:27,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 16 [2025-01-29 22:12:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065983528] [2025-01-29 22:12:27,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:12:27,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-29 22:12:27,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:12:27,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-29 22:12:27,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2025-01-29 22:12:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:27,465 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:12:27,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 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) [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:12:27,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:12:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:12:27,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-29 22:12:27,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-29 22:12:27,845 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:12:27,845 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:12:27,845 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #10 [2025-01-29 22:12:27,845 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:12:27,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-29 22:12:27,845 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:12:27,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-29 22:12:27,845 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:12:27,845 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:12:27,845 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:12:27,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:12:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash -813786811, now seen corresponding path program 11 times [2025-01-29 22:12:27,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:12:27,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868014837] [2025-01-29 22:12:27,846 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-29 22:12:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:12:27,848 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 23 statements into 5 equivalence classes. [2025-01-29 22:12:27,850 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 23 of 23 statements. [2025-01-29 22:12:27,851 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-01-29 22:12:27,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:27,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:12:27,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868014837] [2025-01-29 22:12:27,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868014837] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:12:27,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836082318] [2025-01-29 22:12:27,953 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-29 22:12:27,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:12:27,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:12:27,955 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:12:27,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-29 22:12:27,971 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 23 statements into 5 equivalence classes. [2025-01-29 22:12:27,981 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 23 of 23 statements. [2025-01-29 22:12:27,981 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-01-29 22:12:27,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:12:27,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-29 22:12:27,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:12:39,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 22:12:39,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2025-01-29 22:12:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:12:39,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:12:40,909 INFO L349 Elim1Store]: treesize reduction 40, result has 95.8 percent of original size [2025-01-29 22:12:40,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 30 new quantified variables, introduced 120 case distinctions, treesize of input 35 treesize of output 980 [2025-01-29 22:13:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:05,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836082318] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:13:05,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:13:05,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 13] total 24 [2025-01-29 22:13:05,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942466661] [2025-01-29 22:13:05,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:13:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-29 22:13:05,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:13:05,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-29 22:13:05,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=511, Unknown=1, NotChecked=0, Total=600 [2025-01-29 22:13:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:13:05,186 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:13:05,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 24 states have internal predecessors, (41), 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) [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:13:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:13:05,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:13:05,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:13:05,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-29 22:13:05,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:13:05,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:13:05,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:13:07,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:08,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:10,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:11,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:14,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:17,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:19,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:24,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:13:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:13:25,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-29 22:13:25,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-29 22:13:25,922 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:13:25,922 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:13:25,922 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #11 [2025-01-29 22:13:25,922 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:13:25,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-29 22:13:25,922 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:13:25,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-29 22:13:25,922 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:13:25,922 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:13:25,923 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:13:25,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:13:25,923 INFO L85 PathProgramCache]: Analyzing trace with hash 196385253, now seen corresponding path program 12 times [2025-01-29 22:13:25,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:13:25,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785835006] [2025-01-29 22:13:25,923 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-29 22:13:25,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:13:25,925 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 25 statements into 5 equivalence classes. [2025-01-29 22:13:25,930 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 25 of 25 statements. [2025-01-29 22:13:25,931 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-01-29 22:13:25,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:13:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:26,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:13:26,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785835006] [2025-01-29 22:13:26,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785835006] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:13:26,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444579039] [2025-01-29 22:13:26,045 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-29 22:13:26,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:13:26,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:13:26,047 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:13:26,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-29 22:13:26,066 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 25 statements into 5 equivalence classes. [2025-01-29 22:13:26,076 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 25 of 25 statements. [2025-01-29 22:13:26,076 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-01-29 22:13:26,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:13:26,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-29 22:13:26,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:13:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:26,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:13:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:26,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444579039] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:13:26,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:13:26,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 20 [2025-01-29 22:13:26,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212425948] [2025-01-29 22:13:26,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:13:26,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-29 22:13:26,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:13:26,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-29 22:13:26,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2025-01-29 22:13:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:13:26,189 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:13:26,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 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) [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:13:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:13:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:13:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-29 22:13:26,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-29 22:13:26,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:13:26,635 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:13:26,635 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:13:26,635 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #12 [2025-01-29 22:13:26,635 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:13:26,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-29 22:13:26,635 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:13:26,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-29 22:13:26,635 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:13:26,635 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:13:26,635 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:13:26,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:13:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1059308007, now seen corresponding path program 13 times [2025-01-29 22:13:26,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:13:26,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777567853] [2025-01-29 22:13:26,636 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-29 22:13:26,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:13:26,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-29 22:13:26,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-29 22:13:26,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:13:26,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:13:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:26,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:13:26,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777567853] [2025-01-29 22:13:26,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777567853] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:13:26,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380052662] [2025-01-29 22:13:26,728 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-29 22:13:26,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:13:26,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:13:26,730 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:13:26,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-29 22:13:26,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-29 22:13:26,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-29 22:13:26,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 22:13:26,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:13:26,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-29 22:13:26,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:13:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:26,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:13:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:26,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380052662] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:13:26,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:13:26,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 18 [2025-01-29 22:13:26,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373026866] [2025-01-29 22:13:26,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:13:26,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-29 22:13:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:13:26,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-29 22:13:26,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2025-01-29 22:13:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:13:26,911 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:13:26,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 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) [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-29 22:13:26,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:13:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-01-29 22:13:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-29 22:13:27,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-29 22:13:27,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-29 22:13:27,240 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:13:27,240 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:13:27,240 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #13 [2025-01-29 22:13:27,240 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:13:27,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-29 22:13:27,240 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:13:27,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-29 22:13:27,240 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:13:27,240 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:13:27,240 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:13:27,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:13:27,241 INFO L85 PathProgramCache]: Analyzing trace with hash 649208327, now seen corresponding path program 14 times [2025-01-29 22:13:27,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:13:27,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527758509] [2025-01-29 22:13:27,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 22:13:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:13:27,243 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-29 22:13:27,245 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-29 22:13:27,245 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 22:13:27,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:13:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:27,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:13:27,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527758509] [2025-01-29 22:13:27,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527758509] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:13:27,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800535118] [2025-01-29 22:13:27,354 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 22:13:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:13:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:13:27,356 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:13:27,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-29 22:13:27,371 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-29 22:13:27,387 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-29 22:13:27,387 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 22:13:27,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:13:27,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-01-29 22:13:27,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:13:59,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 22:13:59,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2025-01-29 22:13:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:13:59,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:14:02,232 INFO L349 Elim1Store]: treesize reduction 50, result has 96.7 percent of original size [2025-01-29 22:14:02,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 38 new quantified variables, introduced 190 case distinctions, treesize of input 43 treesize of output 1546 [2025-01-29 22:15:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:15:48,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800535118] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:15:48,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:15:48,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 16] total 30 [2025-01-29 22:15:48,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018470941] [2025-01-29 22:15:48,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:15:48,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-01-29 22:15:48,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:15:48,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-01-29 22:15:48,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=809, Unknown=6, NotChecked=0, Total=930 [2025-01-29 22:15:48,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:15:48,789 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:15:48,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 30 states have internal predecessors, (48), 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) [2025-01-29 22:15:48,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-29 22:15:48,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:15:51,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:15:55,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:15:57,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:15:59,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:00,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:03,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:05,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:08,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:11,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:13,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:14,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:16,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:18,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:20,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:22,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:25,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:27,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:29,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:31,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:33,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:35,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:37,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:39,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:41,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:44,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:46,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:48,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:51,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-29 22:16:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:16:53,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-29 22:16:53,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-29 22:16:53,299 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:16:53,299 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:16:53,299 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #14 [2025-01-29 22:16:53,299 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:16:53,299 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-29 22:16:53,299 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:16:53,299 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-01-29 22:16:53,299 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:16:53,300 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:16:53,300 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:16:53,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:16:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1421249589, now seen corresponding path program 15 times [2025-01-29 22:16:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:16:53,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69680306] [2025-01-29 22:16:53,300 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 22:16:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:16:53,302 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 7 equivalence classes. [2025-01-29 22:16:53,308 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 27 of 27 statements. [2025-01-29 22:16:53,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-01-29 22:16:53,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:16:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:16:53,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:16:53,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69680306] [2025-01-29 22:16:53,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69680306] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:16:53,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585886546] [2025-01-29 22:16:53,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 22:16:53,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:16:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:16:53,434 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:16:53,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-29 22:16:53,454 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 7 equivalence classes. [2025-01-29 22:16:53,465 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 27 of 27 statements. [2025-01-29 22:16:53,465 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-01-29 22:16:53,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:16:53,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-29 22:16:53,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:16:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:16:53,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:16:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:16:53,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585886546] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 22:16:53,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 22:16:53,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 22 [2025-01-29 22:16:53,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640935464] [2025-01-29 22:16:53,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 22:16:53,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-29 22:16:53,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 22:16:53,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-29 22:16:53,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2025-01-29 22:16:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:16:53,708 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 22:16:53,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 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) [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:16:53,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-29 22:16:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-29 22:16:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 22:16:53,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-29 22:16:54,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-29 22:16:54,033 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-29 22:16:54,033 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-29 22:16:54,034 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #15 [2025-01-29 22:16:54,034 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-29 22:16:54,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-29 22:16:54,034 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-29 22:16:54,034 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-29 22:16:54,034 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-29 22:16:54,034 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-29 22:16:54,034 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-29 22:16:54,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 22:16:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash 540207851, now seen corresponding path program 16 times [2025-01-29 22:16:54,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 22:16:54,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009079638] [2025-01-29 22:16:54,034 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 22:16:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 22:16:54,036 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 29 statements into 2 equivalence classes. [2025-01-29 22:16:54,038 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-29 22:16:54,038 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 22:16:54,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:16:54,183 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:16:54,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 22:16:54,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009079638] [2025-01-29 22:16:54,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009079638] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 22:16:54,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984334418] [2025-01-29 22:16:54,183 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 22:16:54,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:16:54,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 22:16:54,185 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 22:16:54,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-29 22:16:54,202 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 29 statements into 2 equivalence classes. [2025-01-29 22:16:54,216 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-29 22:16:54,216 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 22:16:54,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 22:16:54,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-01-29 22:16:54,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 22:18:08,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 22:18:08,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2025-01-29 22:18:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 22:18:11,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 22:18:16,875 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 1153 DAG size of output: 1117 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-29 22:18:16,876 INFO L349 Elim1Store]: treesize reduction 60, result has 97.3 percent of original size [2025-01-29 22:18:16,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 46 new quantified variables, introduced 276 case distinctions, treesize of input 51 treesize of output 2240 [2025-01-29 22:20:45,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2025-01-29 22:20:45,420 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-29 22:20:45,421 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-29 22:20:45,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-01-29 22:20:45,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 22:20:45,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-01-29 22:20:45,629 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 62 more [2025-01-29 22:20:45,634 INFO L158 Benchmark]: Toolchain (without parser) took 510787.01ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 100.4MB in the beginning and 942.1MB in the end (delta: -841.7MB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. [2025-01-29 22:20:45,634 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 22:20:45,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.98ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 22:20:45,634 INFO L158 Benchmark]: Boogie Preprocessor took 14.39ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 98.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 22:20:45,634 INFO L158 Benchmark]: RCFGBuilder took 182.29ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 88.0MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-01-29 22:20:45,634 INFO L158 Benchmark]: TraceAbstraction took 510567.36ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 88.0MB in the beginning and 942.1MB in the end (delta: -854.1MB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. [2025-01-29 22:20:45,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.98ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 14.39ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 98.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 182.29ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 88.0MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 510567.36ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 88.0MB in the beginning and 942.1MB in the end (delta: -854.1MB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...